diff --git a/src/hle/rt64_game_frame.cpp b/src/hle/rt64_game_frame.cpp
index da03727..95ff411 100644
--- a/src/hle/rt64_game_frame.cpp
+++ b/src/hle/rt64_game_frame.cpp
@@ -651,7 +651,7 @@ namespace RT64 {
                     return r < 0 ? r + b : r;
                 }
                 else {
-                    return 0;
+                    return a;
                 }
             };