diff --git a/src/battle_script_commands.c b/src/battle_script_commands.c
index dd49d0493b..b81639db0c 100644
--- a/src/battle_script_commands.c
+++ b/src/battle_script_commands.c
@@ -2983,7 +2983,7 @@ void SetMoveEffect(bool32 primary, u32 certain)
 
                     for (gBattleCommunication[MULTISTRING_CHOOSER] = 0; ; gBattleCommunication[MULTISTRING_CHOOSER]++)
                     {
-                        if (gBattleCommunication[MULTISTRING_CHOOSER] > ARRAY_COUNT(sTrappingMoves))
+                        if (gBattleCommunication[MULTISTRING_CHOOSER] > ARRAY_COUNT(sTrappingMoves) - 1)
                             break;
                         if (sTrappingMoves[gBattleCommunication[MULTISTRING_CHOOSER]] == gCurrentMove)
                             break;