diff --git a/Quake/gl_fog.c b/Quake/gl_fog.c
index 3a6cb235..254a2a71 100644
--- a/Quake/gl_fog.c
+++ b/Quake/gl_fog.c
@@ -263,6 +263,9 @@ float *Fog_GetColor (void)
 		c[3] = 1.0;
 	}
 
+	for (i=0;i<3;i++)
+		c[i] = CLAMP (0.f, c[i], 1.f);
+
 	//find closest 24-bit RGB value, so solid-colored sky can match the fog perfectly
 	for (i=0;i<3;i++)
 		c[i] = (float)(Q_rint(c[i] * 255)) / 255.0f;