diff --git a/script-install-manual-scripts b/script-install-manual-scripts
index b9708028..ecb702f4 100755
--- a/script-install-manual-scripts
+++ b/script-install-manual-scripts
@@ -18,7 +18,7 @@ install -m 644 ./functions /usr/local/bin/
 
 for script in script-*; do
     echo "cp -f $script /usr/local/bin/"
-    cp -f "$script" /usr/local/bin/
+    cp -u "$script" /usr/local/bin/
 done
 
 # Install manual