diff --git a/script-install-manual-scripts b/script-install-manual-scripts
index c3d97d5c..dc8b294a 100755
--- a/script-install-manual-scripts
+++ b/script-install-manual-scripts
@@ -14,7 +14,7 @@ is_root
 install -m 644 "$parent"/functions /usr/local/bin/
 
 for script in "$parent"/script-*; do
-    cp -f "$script" /usr/local/bin/
+    cp -u "$script" /usr/local/bin/
 done
 
 # Install manual