diff --git a/examples/sample.makefile.regen b/examples/sample.makefile.regen
index 4c39f78..a382423 100755
--- a/examples/sample.makefile.regen
+++ b/examples/sample.makefile.regen
@@ -40,7 +40,7 @@
 
 EXTRA_CFLAGS=""
 if test -f config.h ; then
-	EXTRA_CFLAGS="-DHAVE_CONFIG_H $EXTRA_CFLAGS"
+	EXTRA_CFLAGS="-DHAVE_CONFIG_H"
 fi
 
 set -x