diff --git a/retroarch.c b/retroarch.c
index a4c1f1f76b..a209a692f7 100644
--- a/retroarch.c
+++ b/retroarch.c
@@ -2531,12 +2531,18 @@ static inline void update_frame_time(void)
 
 static inline void limit_frame_time(void)
 {
+   float ffr;
+   double effective_fps, mft_f;
    retro_time_t current = rarch_get_time_usec();
    retro_time_t target  = 0, to_sleep_ms = 0;
 
-   g_extern.frame_limit.minimum_frame_time = (retro_time_t)
-      roundf(1000000.0f / (g_extern.system.av_info.timing.fps *
-               g_settings.fastforward_ratio));
+   ffr = g_settings.fastforward_ratio;
+   if (ffr < 0.0)
+      ffr = -1.0;
+   effective_fps = (g_extern.system.av_info.timing.fps * ffr);
+   mft_f = 1000000.0f / effective_fps;
+
+   g_extern.frame_limit.minimum_frame_time = (retro_time_t) roundf(mft_f);
 
    target = g_extern.frame_limit.last_frame_time + 
       g_extern.frame_limit.minimum_frame_time;