diff --git a/Makefile b/Makefile
index 176992c49a..192fdf2212 100644
--- a/Makefile
+++ b/Makefile
@@ -22,7 +22,7 @@
 # Just run 'make menuconfig', configure stuff, then run 'make'.
 # You shouldn't need to mess with anything beyond this point...
 #--------------------------------------------------------------
-TOPDIR=./
+TOPDIR:=.
 CONFIG_CONFIG_IN=Config.in
 CONFIG_DEFCONFIG=.defconfig
 CONFIG=package/config