diff --git a/tests/test_irq/Makefile b/tests/test_irq/Makefile
index 3a7ababb9b7083491bb64a2ab2cd8ac9a705d266..97ea8be88aad4af32b0236ef44fafcfc8bcd6e82 100644
--- a/tests/test_irq/Makefile
+++ b/tests/test_irq/Makefile
@@ -16,3 +16,6 @@ else
 USEMODULE += auto_init
 USEMODULE += hwtimer
 USEMODULE += posix
+
+include $(RIOTBASE)/Makefile.include
+endif