diff --git a/desktop_version/src/GraphicsUtil.cpp b/desktop_version/src/GraphicsUtil.cpp
index 907819eb..8e1b5509 100644
--- a/desktop_version/src/GraphicsUtil.cpp
+++ b/desktop_version/src/GraphicsUtil.cpp
@@ -315,11 +315,9 @@ void BlitSurfaceColoured(
 
 int scrollamount = 0;
 bool isscrolling = 0;
-SDL_Surface* ApplyFilter( SDL_Surface* _src )
-{
-    SDL_Surface* _ret = SDL_CreateRGBSurface(_src->flags, _src->w, _src->h, 32,
-        _src->format->Rmask, _src->format->Gmask, _src->format->Bmask, _src->format->Amask);
 
+void UpdateFilter()
+{
     if (rand() % 4000 < 8)
     {
         isscrolling = true;
@@ -334,6 +332,12 @@ SDL_Surface* ApplyFilter( SDL_Surface* _src )
             isscrolling = false;
         }
     }
+}
+
+SDL_Surface* ApplyFilter( SDL_Surface* _src )
+{
+    SDL_Surface* _ret = SDL_CreateRGBSurface(_src->flags, _src->w, _src->h, 32,
+        _src->format->Rmask, _src->format->Gmask, _src->format->Bmask, _src->format->Amask);
 
     int redOffset = rand() % 4;
 
diff --git a/desktop_version/src/GraphicsUtil.h b/desktop_version/src/GraphicsUtil.h
index b76a7747..78f264d7 100644
--- a/desktop_version/src/GraphicsUtil.h
+++ b/desktop_version/src/GraphicsUtil.h
@@ -46,6 +46,7 @@ void ScrollSurface(SDL_Surface* _src, int pX, int py);
 SDL_Surface * FlipSurfaceHorizontal(SDL_Surface* _src);
 SDL_Surface * FlipSurfaceVerticle(SDL_Surface* _src);
 SDL_Surface * ScaleSurfaceSlow( SDL_Surface *_surface, int Width, int Height );
+void UpdateFilter();
 SDL_Surface* ApplyFilter( SDL_Surface* _src );
 
 #endif /* GRAPHICSUTIL_H */
diff --git a/desktop_version/src/main.cpp b/desktop_version/src/main.cpp
index c04ff99d..e543224d 100644
--- a/desktop_version/src/main.cpp
+++ b/desktop_version/src/main.cpp
@@ -486,6 +486,11 @@ int main(int argc, char *argv[])
                 graphics.updatescreenshake();
             }
 
+            if (graphics.screenbuffer->badSignalEffect)
+            {
+                UpdateFilter();
+            }
+
             //We did editorinput, now it's safe to turn this off
             key.linealreadyemptykludge = false;