diff --git a/Makefile.vars b/Makefile.vars
index 56cad8ebb5ba567d356894b68cab85ef94fb826e..ba5e8d0e06d2b927a3f3c3eeef1c0011997bef6e 100644
--- a/Makefile.vars
+++ b/Makefile.vars
@@ -35,6 +35,8 @@ export LINK                  # The command used to link the files. Must take the
 export LINKFLAGS             # Flags to supply in the linking step.
 export OBJCOPY               # The command used to create the HEXFILE.
 export OFLAGS                # The parameter for OBJCOPY, e.g. to strip the debug information.
+export OBJDUMP               # The command used to create the assembly listing.
+export OBJDUMPFLAGS          # The parameter for OBJDUMP.
 export SIZE                  # The command to read to size of the ELF sections.
 export UNDEF                 # Set by the BOARD's and CPU's Makefile.include, this contains object files with must not be used in the ELFFILE even if the if no call to the functions.
 export WERROR                # Treat all compiler warnings as errors if set to 1 (see -Werror flag in GCC manual)
diff --git a/cpu/Makefile.include.gnu b/cpu/Makefile.include.gnu
index f571741121cad8e870be492c9c25f961d2b9f04d..a2e5764c57d19441cca1f72b8e5663c01b1a9a16 100644
--- a/cpu/Makefile.include.gnu
+++ b/cpu/Makefile.include.gnu
@@ -6,4 +6,5 @@ export AS = $(PREFIX)as
 export LINK = $(PREFIX)gcc
 export SIZE = $(PREFIX)size
 export OBJCOPY = $(PREFIX)objcopy
+export OBJDUMP = $(PREFIX)objdump
 export DBG = $(GDBPREFIX)gdb