diff --git a/lib/lyx2lyx/LyX.py b/lib/lyx2lyx/LyX.py
index 24a12708f2..22addfb7e0 100644
--- a/lib/lyx2lyx/LyX.py
+++ b/lib/lyx2lyx/LyX.py
@@ -621,7 +621,7 @@ class LyX_base:
         modlist = self.get_module_list()
         if module not in modlist:
             return False
-        self.set_module_list([line for line in modlist if line != "ruby"])
+        self.set_module_list([line for line in modlist if line != module])
         return True
 
     def get_module_list(self):