diff --git a/src/video/cocoa/event.mm b/src/video/cocoa/event.mm
index 1298961dc..5b54e459f 100644
--- a/src/video/cocoa/event.mm
+++ b/src/video/cocoa/event.mm
@@ -90,6 +90,8 @@ static uint32 GetTick()
 	return tim.tv_usec / 1000 + tim.tv_sec * 1000;
 }
 
+extern uint32 _qz_last_frame;
+
 static void QZ_WarpCursor(int x, int y)
 {
 	assert(_cocoa_subdriver != NULL);
@@ -683,6 +685,9 @@ void QZ_GameLoop()
 
 			GameLoop();
 
+			if (_fast_forward && GetTick() - _qz_last_frame <= MILLISECONDS_PER_TICK/2)
+				continue;
+
 			UpdateWindows();
 			QZ_CheckPaletteAnim();
 			_cocoa_subdriver->Draw();
diff --git a/src/video/cocoa/wnd_quartz.mm b/src/video/cocoa/wnd_quartz.mm
index 795a311bc..59286e0b8 100644
--- a/src/video/cocoa/wnd_quartz.mm
+++ b/src/video/cocoa/wnd_quartz.mm
@@ -34,6 +34,8 @@
 #include "../../core/math_func.hpp"
 #include "../../gfx_func.h"
 
+#import <sys/time.h> /* gettimeofday */
+
 /* On some old versions of MAC OS this may not be defined.
  * Those versions generally only produce code for PPC. So it should be safe to
  * set this to 0. */
@@ -57,6 +59,17 @@ class WindowQuartzSubdriver;
 - (void)drawRect:(NSRect)invalidRect;
 @end
 
+
+static uint32 GetTick()
+{
+	struct timeval tim;
+
+	gettimeofday(&tim, NULL);
+	return tim.tv_usec / 1000 + tim.tv_sec * 1000;
+}
+
+uint32 _qz_last_frame;
+
 class WindowQuartzSubdriver : public CocoaSubdriver {
 private:
 	/**
@@ -214,6 +227,7 @@ static CGColorSpaceRef QZ_GetCorrectColorSpace()
 	}
 
 	CGImageRelease(fullImage);
+	_qz_last_frame = GetTick();
 }
 
 @end