diff --git a/src/g_game.c b/src/g_game.c
index c88cca879..2047262e1 100644
--- a/src/g_game.c
+++ b/src/g_game.c
@@ -4066,7 +4066,7 @@ void G_MapIntoRoundQueue(UINT16 map, UINT8 setgametype, boolean setencore, boole
 void G_GPCupIntoRoundQueue(cupheader_t *cup, UINT8 setgametype, boolean setencore)
 {
 	UINT8 i, levelindex = 0, bonusindex = 0;
-	UINT8 bonusmodulo = (cup->numlevels+1)/(cup->numbonus+1);
+	UINT8 bonusmodulo = max(1, (cup->numlevels+1)/(cup->numbonus+1));
 	UINT16 cupLevelNum;
 
 	// Levels are added to the queue in the following pattern.