diff --git a/src/p_user.c b/src/p_user.c
index 2712a126a..4ad7fd590 100644
--- a/src/p_user.c
+++ b/src/p_user.c
@@ -1778,7 +1778,7 @@ static void P_DoBubbleBreath(player_t *player)
 	fixed_t z = player->mo->z;
 	mobj_t *bubble = NULL;
 
-	if (!(player->mo->eflags & MFE_UNDERWATER) || player->spectator)
+	if (!(player->mo->eflags & MFE_UNDERWATER) || player->spectator || player->curshield == KSHIELD_BUBBLE)
 		return;
 
 	if (player->charflags & SF_MACHINE)