diff --git a/Source/scrollrt.cpp b/Source/scrollrt.cpp
index 69704e93d..3e0de66ff 100644
--- a/Source/scrollrt.cpp
+++ b/Source/scrollrt.cpp
@@ -986,7 +986,11 @@ void DrawClippedObject(int x, int y, int ox, int oy, BOOL pre, int CelSkip, int
 	}
 
 	/// ASSERT: assert((unsigned char)bv < MAXOBJECTS);
+#ifdef HELLFIRE
+	if (bv >= MAXOBJECTS)
+#else
 	if ((BYTE)bv >= MAXOBJECTS)
+#endif
 		return;
 
 	pCelBuff = object[bv]._oAnimData;