1 files changed, 1 insertions, 1 deletions
diff --git a/keen.c b/keen.c
index f9228dc..7e2f71c 100644
--- a/keen.c
+++ b/keen.c
@@ -1742,7 +1742,7 @@ static char *interpret_move(const game_state *state, game_ui *ui,
     int tx, ty;
     char buf[80];
 
-    button &= ~MOD_MASK;
+    button = STRIP_BUTTON_MODIFIERS(button);
 
     tx = FROMCOORD(x);
     ty = FROMCOORD(y);