diff --git a/desktop_version/src/main.cpp b/desktop_version/src/main.cpp
index 1d99f5c2..eb3f63d4 100644
--- a/desktop_version/src/main.cpp
+++ b/desktop_version/src/main.cpp
@@ -681,7 +681,12 @@ static void inline deltaloop(void)
 
     while (accumulator >= timesteplimit)
     {
-        increment_func_index();
+        enum IndexCode index_code = increment_func_index();
+
+        if (index_code == Index_end)
+        {
+            loop_assign_active_funcs();
+        }
 
         accumulator = SDL_fmodf(accumulator, timesteplimit);