diff --git a/source/games/sw/src/weapon.cpp b/source/games/sw/src/weapon.cpp
index b901c971b..a2a0b190b 100644
--- a/source/games/sw/src/weapon.cpp
+++ b/source/games/sw/src/weapon.cpp
@@ -10724,6 +10724,7 @@ SpawnFireballFlames(int16_t SpriteNum, int16_t enemy)
         if (!eu)
         {
             ASSERT(true == false);
+            return -1;
         }
 
         if (eu->flame >= 0)