diff --git a/Makefile.modules b/Makefile.modules
index fa326974881f4d06d938891c5e7e5aa29f3cd8e7..0c378806e7e7e8f28f9088e4e58dac0ab8329d86 100644
--- a/Makefile.modules
+++ b/Makefile.modules
@@ -1,4 +1,3 @@
-export MAKEBASE =$(RIOTBASE)
 UNDEF += $(BINDIR)startup.o
 
 include $(RIOTBASE)/Makefile.pseudomodules
diff --git a/cpu/arm_common/Makefile.include b/cpu/arm_common/Makefile.include
index 4ffd7b0de8356c7e3afaaada5add18008792c848..2314e46239831b2b007b8d4721484fb67d06baa3 100644
--- a/cpu/arm_common/Makefile.include
+++ b/cpu/arm_common/Makefile.include
@@ -1,3 +1,3 @@
-INCLUDES += -I$(MAKEBASE)/cpu/arm_common/include/
+INCLUDES += -I$(RIOTBASE)/cpu/arm_common/include/
 
 export UNDEF += $(BINDIR)syscalls.o
diff --git a/cpu/cc430/Makefile.include b/cpu/cc430/Makefile.include
index ae7de8cc19464d7ae4e809da7d8dd26a8c97e83d..cbad77615809d89dc70d902075a5ff6972d6f5c7 100644
--- a/cpu/cc430/Makefile.include
+++ b/cpu/cc430/Makefile.include
@@ -1,3 +1,3 @@
-INCLUDES += -I$(MAKEBASE)/cpu/cc430/include/
+INCLUDES += -I$(RIOTBASE)/cpu/cc430/include/
 
 include $(RIOTCPU)/msp430-common/Makefile.include
diff --git a/cpu/lpc1768/Makefile.include b/cpu/lpc1768/Makefile.include
index bacb82189b023b2cb34b389f89176f118ad1714d..d3ef771ec2f294ccdc760cedf8b730df96a1356d 100644
--- a/cpu/lpc1768/Makefile.include
+++ b/cpu/lpc1768/Makefile.include
@@ -1,3 +1,3 @@
-INCLUDES += -I$(MAKEBASE)/cpu/lpc1768/include
+INCLUDES += -I$(RIOTBASE)/cpu/lpc1768/include
 
 export UNDEF += $(BINDIR)syscalls.o
diff --git a/cpu/lpc2387/gpioint/Makefile b/cpu/lpc2387/gpioint/Makefile
index 695bc04395a36c737a6234f426e9743c113ab47a..960dd49c72c66d24dd5973584ad1f89a986bcf2f 100644
--- a/cpu/lpc2387/gpioint/Makefile
+++ b/cpu/lpc2387/gpioint/Makefile
@@ -1,3 +1,3 @@
 MODULE =gpioint
 
-include $(MAKEBASE)/Makefile.base
+include $(RIOTBASE)/Makefile.base
diff --git a/cpu/lpc2387/i2c/Makefile b/cpu/lpc2387/i2c/Makefile
index e1c5af410ed7f6a561e2835bc2622b6f12ac99ea..5a2dc6bbd52b56504202b25cf8482896cf4f90cb 100644
--- a/cpu/lpc2387/i2c/Makefile
+++ b/cpu/lpc2387/i2c/Makefile
@@ -1,3 +1,3 @@
 MODULE =i2c
 
-include $(MAKEBASE)/Makefile.base
+include $(RIOTBASE)/Makefile.base
diff --git a/cpu/lpc2387/mci/Makefile b/cpu/lpc2387/mci/Makefile
index 970c9d87f53bdf057cfc66e97f87daff8fa9a9ae..43164be73383fd45c02c7eb37fbf6ee61b52f484 100644
--- a/cpu/lpc2387/mci/Makefile
+++ b/cpu/lpc2387/mci/Makefile
@@ -1,3 +1,3 @@
 MODULE =mci
 
-include $(MAKEBASE)/Makefile.base
+include $(RIOTBASE)/Makefile.base
diff --git a/cpu/lpc2387/rtc/Makefile b/cpu/lpc2387/rtc/Makefile
index 4d24181c9931b49adb796a5926373525c84b8314..042b6118085ea60c1df20be3fd1f607139fd58c8 100644
--- a/cpu/lpc2387/rtc/Makefile
+++ b/cpu/lpc2387/rtc/Makefile
@@ -1,3 +1,3 @@
 MODULE =rtc
 
-include $(MAKEBASE)/Makefile.base
+include $(RIOTBASE)/Makefile.base
diff --git a/cpu/mc1322x/Makefile.include b/cpu/mc1322x/Makefile.include
index 9bc7621575ea308b23e73d048d303f2a379b7f79..20f8afee4ba50f714c4c4585da168501c6b01f4d 100644
--- a/cpu/mc1322x/Makefile.include
+++ b/cpu/mc1322x/Makefile.include
@@ -1,4 +1,4 @@
-INCLUDES += -I$(MAKEBASE)/cpu/mc1322x/include
+INCLUDES += -I$(RIOTBASE)/cpu/mc1322x/include
 
 include $(RIOTCPU)/arm_common/Makefile.include
 
diff --git a/cpu/mc1322x/adc/Makefile b/cpu/mc1322x/adc/Makefile
index 4e1bdca68c47e189c478e5797e2cbd8dc699e0d0..a4edfd7d060d3411dcd5d2203fd2569b52cdd98f 100644
--- a/cpu/mc1322x/adc/Makefile
+++ b/cpu/mc1322x/adc/Makefile
@@ -2,4 +2,4 @@ INCLUDES = -I$(RIOTBASE)/cpu/mc1322x/adc/include
 
 MODULE =mc1322x_adc
 
-include $(MAKEBASE)/Makefile.base
+include $(RIOTBASE)/Makefile.base
diff --git a/cpu/mc1322x/asm/Makefile b/cpu/mc1322x/asm/Makefile
index 6f90f688342635b0c8ae4d3707a9461f0b682960..82c3626ff91364fb0a295a1caa96efe240300a44 100644
--- a/cpu/mc1322x/asm/Makefile
+++ b/cpu/mc1322x/asm/Makefile
@@ -2,4 +2,4 @@ INCLUDES = -I$(RIOTBASE)/cpu/mc1322x/asm/include
 
 MODULE =mc1322x_asm
 
-include $(MAKEBASE)/Makefile.base
+include $(RIOTBASE)/Makefile.base
diff --git a/cpu/mc1322x/maca/Makefile b/cpu/mc1322x/maca/Makefile
index a6cf750214f34d8f8b68e8b157cd4a6f9fb1debc..373dd437fc3a378ae69f7c4b258fba7fc1e41eaa 100644
--- a/cpu/mc1322x/maca/Makefile
+++ b/cpu/mc1322x/maca/Makefile
@@ -2,4 +2,4 @@ INCLUDES = -I$(RIOTBASE)/cpu/mc1322x/include -I$(RIOTBASE)/cpu/mc1322x/maca/incl
 
 MODULE =mc1322x
 
-include $(MAKEBASE)/Makefile.base
+include $(RIOTBASE)/Makefile.base
diff --git a/cpu/msp430-common/Makefile.include b/cpu/msp430-common/Makefile.include
index e08934176769c210095c4637baba43cd24b0aa0c..caa62451a9795b06d5537387aec81e2461986da7 100644
--- a/cpu/msp430-common/Makefile.include
+++ b/cpu/msp430-common/Makefile.include
@@ -1 +1 @@
-INCLUDES += -I$(MAKEBASE)/cpu/msp430-common/include/
+INCLUDES += -I$(RIOTBASE)/cpu/msp430-common/include/
diff --git a/cpu/native/net/Makefile b/cpu/native/net/Makefile
index 6f69094f824606f80fb16d7387f5a119c7d8ed63..0c4702e0a20f53b17b4dd442b3e8f438db1b6a20 100644
--- a/cpu/native/net/Makefile
+++ b/cpu/native/net/Makefile
@@ -1,6 +1,6 @@
 MODULE = nativenet
 
-include $(MAKEBASE)/Makefile.base
+include $(RIOTBASE)/Makefile.base
 
 $(BINDIR)%.o: %.c
 	$(AD)$(CC) $(CFLAGS) $(NATIVEINCLUDES) -c $*.c -o $(BINDIR)$*.o
diff --git a/cpu/native/rtc/Makefile b/cpu/native/rtc/Makefile
index 13b8ace18bb1c13b838cd563fc7d3bebf03d98cc..717274edc2243a8497eb880c00ca07ebb40df698 100644
--- a/cpu/native/rtc/Makefile
+++ b/cpu/native/rtc/Makefile
@@ -1,6 +1,6 @@
 MODULE =rtc
 
-include $(MAKEBASE)/Makefile.base
+include $(RIOTBASE)/Makefile.base
 
 $(BINDIR)%.o: %.c
 	$(AD)$(CC) $(CFLAGS) $(NATIVEINCLUDES) -c $*.c -o $(BINDIR)$*.o
diff --git a/drivers/cc110x/Makefile b/drivers/cc110x/Makefile
index da9308bbd52828163d725585287e5d69aeffd5e1..da43c6b942f400eea445c7fd2aea8bb321a109ff 100644
--- a/drivers/cc110x/Makefile
+++ b/drivers/cc110x/Makefile
@@ -1,3 +1,3 @@
 MODULE =cc110x
 
-include $(MAKEBASE)/Makefile.base
+include $(RIOTBASE)/Makefile.base
diff --git a/drivers/cc110x_ng/spi/Makefile b/drivers/cc110x_ng/spi/Makefile
index d73874dec2dcab2e5d138d6aabd4caf9899ba5fd..a66970b0331649e0d7f26453861877e90856412c 100644
--- a/drivers/cc110x_ng/spi/Makefile
+++ b/drivers/cc110x_ng/spi/Makefile
@@ -2,4 +2,4 @@ MODULE =cc110x_spi
 
 INCLUDES += -I$(RIOTBASE)/drivers/cc110x_ng
 
-include $(MAKEBASE)/Makefile.base
+include $(RIOTBASE)/Makefile.base
diff --git a/drivers/lm75a/Makefile b/drivers/lm75a/Makefile
index f96cb2a3d60e1da96f52d83e4de3543617028b4e..b1095f7fc04b6c937b9ba43029311f85ecf67a0e 100644
--- a/drivers/lm75a/Makefile
+++ b/drivers/lm75a/Makefile
@@ -1,2 +1,2 @@
 MODULE =lm75a
-include $(MAKEBASE)/Makefile.base
+include $(RIOTBASE)/Makefile.base
diff --git a/drivers/ltc4150/Makefile b/drivers/ltc4150/Makefile
index 29b91b361afda077b498dec684956b3221ea4d40..42881d61956354831bae076c4c70db7f30d70732 100644
--- a/drivers/ltc4150/Makefile
+++ b/drivers/ltc4150/Makefile
@@ -1,2 +1,2 @@
 MODULE =ltc4150
-include $(MAKEBASE)/Makefile.base
+include $(RIOTBASE)/Makefile.base
diff --git a/drivers/sht11/Makefile b/drivers/sht11/Makefile
index 1f88712aa4da5aa4d6d34a6e673ba7291ed0b495..0ccc6b38b25883f36443a24ea1cb71a7bd412342 100644
--- a/drivers/sht11/Makefile
+++ b/drivers/sht11/Makefile
@@ -1,2 +1,2 @@
 MODULE =sht11
-include $(MAKEBASE)/Makefile.base
+include $(RIOTBASE)/Makefile.base
diff --git a/drivers/srf02/Makefile b/drivers/srf02/Makefile
index 31ac029367330b7c4175086c8086f6eaa97fb506..6e23e8fe1adf1a239aad3baa953f6d5a0092676a 100644
--- a/drivers/srf02/Makefile
+++ b/drivers/srf02/Makefile
@@ -1,2 +1,2 @@
 MODULE =srf02
-include $(MAKEBASE)/Makefile.base
+include $(RIOTBASE)/Makefile.base
diff --git a/drivers/srf08/Makefile b/drivers/srf08/Makefile
index 92e653175490155d5f4813c6e27023da05009765..ec63204246985584e06883e98c892c207fc9a08d 100644
--- a/drivers/srf08/Makefile
+++ b/drivers/srf08/Makefile
@@ -1,2 +1,2 @@
 MODULE =srf08
-include $(MAKEBASE)/Makefile.base
+include $(RIOTBASE)/Makefile.base
diff --git a/sys/transceiver/Makefile b/sys/transceiver/Makefile
index 2828e7bb28cd580809b8c46b8ca638c6c5e4bdce..6b3ed1b85f172f347f7b5922b0a4efe3bd277e3e 100644
--- a/sys/transceiver/Makefile
+++ b/sys/transceiver/Makefile
@@ -12,4 +12,4 @@ ifneq (,$(filter mc1322x,$(USEMODULE)))
 	INCLUDES += -I$(RIOTBASE)/sys/net/include
 endif
 
-include $(MAKEBASE)/Makefile.base
+include $(RIOTBASE)/Makefile.base
diff --git a/sys/uart0/Makefile b/sys/uart0/Makefile
index 04f1ef49f3051fa3a2436ad9cfb707445fb3f003..64c07fc24f7608aa2cb174182f6943f0b87f6364 100644
--- a/sys/uart0/Makefile
+++ b/sys/uart0/Makefile
@@ -1,3 +1,3 @@
 MODULE = uart0
 
-include $(MAKEBASE)/Makefile.base
+include $(RIOTBASE)/Makefile.base