diff --git a/wadsrc/static/shaders/glsl/main.vp b/wadsrc/static/shaders/glsl/main.vp
index f718d73bc8..f800fea1be 100644
--- a/wadsrc/static/shaders/glsl/main.vp
+++ b/wadsrc/static/shaders/glsl/main.vp
@@ -94,8 +94,8 @@ void main()
 			ClipDistance4 = worldcoord.y - ((uSplitBottomPlane.w + uSplitBottomPlane.x * worldcoord.x + uSplitBottomPlane.y * worldcoord.z) * uSplitBottomPlane.z);
 		}
 
-		vWorldNormal = NormalModelMatrix * vec4(normalize(bones.Normal), 1.0);
-		vEyeNormal = NormalViewMatrix * vec4(normalize(vWorldNormal.xyz), 1.0);
+		vWorldNormal = vec4(normalize((NormalModelMatrix * vec4(normalize(bones.Normal), 1.0)).xyz), 1.0);
+		vEyeNormal = vec4(normalize((NormalViewMatrix * vec4(normalize(vWorldNormal.xyz), 1.0)).xyz), 1.0);
 	#endif
 
 	#ifdef SPHEREMAP