diff --git a/autogen.sh b/autogen.sh
index 63a53837ee..d265ba52df 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -1,10 +1,10 @@
 #!/bin/sh
 
 rm -rf autom4te.cache
-rm -f aclocal.m4 ltmain.sh
+rm -f aclocal.m4 ltmain.sh config.cache
 
 autoreconf -vif
 
 if [ -z "$NOCONFIGURE" ]; then
-	./configure -C "$@"
+  exec ./configure -C "$@"
 fi