diff --git a/documentation/readthedocs/source/stronghold_crusader.rst b/documentation/readthedocs/source/stronghold_crusader.rst
index 114d614..8058048 100644
--- a/documentation/readthedocs/source/stronghold_crusader.rst
+++ b/documentation/readthedocs/source/stronghold_crusader.rst
@@ -12,7 +12,7 @@ Next, you will need to install directplay and fix some settings in winecfg.
 
 .. code-block:: bash
 
-    chmod +x ~/.local/share/Steam/steamapps/compatdata/40970/pfx/dosdevices/c:/windows/syswow64/*
+    chmod 777 ~/.local/share/Steam/steamapps/compatdata/40970/pfx/dosdevices/c:/windows/syswow64/*
     protontricks 40970 directplay
     protontricks 40970 winecfg