diff --git a/build/buildlib.sh b/build/buildlib.sh
index 6b9da6389a..5092bff5f5 100755
--- a/build/buildlib.sh
+++ b/build/buildlib.sh
@@ -59,7 +59,7 @@ fi
 if [ ! -f $root/.nothanks ] && [ $uncompressed/.complete -ot $uncompressed ] ; then 
     echo remove stale .complete
     rm $uncompressed/.complete
-    cd $uncompressed && $MAKE clean distclean
+    sh -c "cd $uncompressed && $MAKE clean distclean"
 fi
 
 if [ -f $uncompressed/.complete ] ; then