diff --git a/Makefile b/Makefile
index 599e744d3e33d0156e3060cb8c05b76f294d7166..50b07fa665e5d06d3ba852775824c7a75e015cb9 100644
--- a/Makefile
+++ b/Makefile
@@ -984,7 +984,7 @@ CLEAN_FILES +=	vmlinux System.map \
 
 # Directories & files removed with 'make mrproper'
 MRPROPER_DIRS  += include/config include2
-MRPROPER_FILES += .config .config.old include/asm .version \
+MRPROPER_FILES += .config .config.old include/asm .version .old_version \
                   include/linux/autoconf.h include/linux/version.h \
                   Module.symvers tags TAGS cscope*