diff --git a/src/k_kart.c b/src/k_kart.c
index 8079b2c63..d52afa2eb 100644
--- a/src/k_kart.c
+++ b/src/k_kart.c
@@ -6592,8 +6592,10 @@ void K_MoveKartPlayer(player_t *player, boolean onground)
 									{
 										if (player->kartstuff[k_bubbleblowup] == 0)
 											S_StartSound(player->mo, sfx_s3k75);
+
 										player->kartstuff[k_bubbleblowup]++;
-										player->kartstuff[k_bubblecool] = player->kartstuff[k_bubbleblowup]*3;
+										player->kartstuff[k_bubblecool] = player->kartstuff[k_bubbleblowup]*4;
+
 										if (player->kartstuff[k_bubbleblowup] > bubbletime*2)
 										{
 											K_ThrowKartItem(player, (player->kartstuff[k_throwdir] > 0), MT_BUBBLESHIELDTRAP, -1, 0);