diff --git a/graphics/simplegfx/source/main.c b/graphics/simplegfx/source/main.c
index 7f780a2..cfdb2bc 100644
--- a/graphics/simplegfx/source/main.c
+++ b/graphics/simplegfx/source/main.c
@@ -40,7 +40,7 @@ int main(int argc, char **argv)
         //Set framebuf to different shades of grey.
         u32 x, y;
         for (x=0; x<width; x++)
-            for (y=0; y<width; y++)
+            for (y=0; y<height; y++)
                 framebuf[gfxGetFramebufferDisplayOffset(x, y)] = 0x01010101 * cnt * 4;
 
         gfxFlushBuffers();