diff --git a/makefile b/makefile
index 33cd10e..5ddfb26 100644
--- a/makefile
+++ b/makefile
@@ -54,7 +54,7 @@
 # any rules you put here will be depended on in clean builds
 EXTRA_CLEANDEPS := 
 
-include project/$(PROJECT)/rules.mk
+include project/$(PROJECT).mk
 include target/$(TARGET)/rules.mk
 include platform/$(PLATFORM)/rules.mk
 include arch/$(ARCH)/rules.mk