diff --git a/xcape.c b/xcape.c
index 898e47c..e8b2a58 100644
--- a/xcape.c
+++ b/xcape.c
@@ -369,9 +369,13 @@ void intercept (XPointer user_data, XRecordInterceptData *data)
                 {
                     handle_key (self, km, mouse_pressed, key_event);
                 }
-                else if (km->pressed && key_event == KeyPress)
+                else if (km->pressed && key_event == KeyPress) 
                 {
-                    km->used = True;
+		    /* We should check if the pressed key is a modifier before marking the key as used. */
+		    if (key_code != 50)  /* hack; try if it works */
+		    {
+			km->used = True;
+		    }
                 }
             }
         }
@@ -381,6 +385,7 @@ exit:
     XRecordFreeData (data);
 }
 
+
 KeyMap_t *parse_token (Display *dpy, char *token, Bool debug)
 {
     KeyMap_t *km = NULL;