diff --git a/s/build b/s/build
index 820e330f9..b59804626 100755
--- a/s/build
+++ b/s/build
@@ -33,7 +33,6 @@ if [ ! -d $ROOT/$BUILD ]; then
   exit
 fi
 
-rm -rf crypto tolua
 git submodule update
 
 echo "build eressea"