diff --git a/Makefile b/Makefile
index f497f5796b..ca9e511bdf 100644
--- a/Makefile
+++ b/Makefile
@@ -4,6 +4,7 @@ include config.mak
 vpath %.c    $(SRC_PATH)
 vpath %.cpp  $(SRC_PATH)
 vpath %.h    $(SRC_PATH)
+vpath %.m    $(SRC_PATH)
 vpath %.S    $(SRC_PATH)
 vpath %.asm  $(SRC_PATH)
 vpath %.rc   $(SRC_PATH)