diff --git a/wadsrc/static/shaders/glsl/main.fp b/wadsrc/static/shaders/glsl/main.fp
index 95f248d69a..eb4685084b 100644
--- a/wadsrc/static/shaders/glsl/main.fp
+++ b/wadsrc/static/shaders/glsl/main.fp
@@ -891,7 +891,7 @@ void main()
 #ifdef DITHERTRANS
 	int index = (int(pixelpos.x) % 8) * 8 + int(pixelpos.y) % 8;
 	const float DITHER_THRESHOLDS[64] =
-	{
+	float[64](
 		1.0 / 65.0, 33.0 / 65.0, 9.0 / 65.0, 41.0 / 65.0, 3.0 / 65.0, 35.0 / 65.0, 11.0 / 65.0, 43.0 / 65.0,
 		49.0 / 65.0, 17.0 / 65.0, 57.0 / 65.0, 25.0 / 65.0, 51.0 / 65.0, 19.0 / 65.0, 59.0 / 65.0, 27.0 / 65.0,
 		13.0 / 65.0, 45.0 / 65.0, 5.0 / 65.0, 37.0 / 65.0, 15.0 / 65.0, 47.0 / 65.0, 7.0 / 65.0, 39.0 / 65.0,
@@ -900,7 +900,7 @@ void main()
 		52.0 / 65.0, 20.0 / 65.0, 60.0 / 65.0, 28.0 / 65.0, 50.0 / 65.0, 18.0 / 65.0, 58.0 / 65.0, 26.0 / 65.0,
 		16.0 / 65.0, 48.0 / 65.0, 8.0 / 65.0, 40.0 / 65.0, 14.0 / 65.0, 46.0 / 65.0, 6.0 / 65.0, 38.0 / 65.0,
 		64.0 / 65.0, 32.0 / 65.0, 56.0 / 65.0, 24.0 / 65.0, 62.0 / 65.0, 30.0 / 65.0, 54.0 / 65.0, 22.0 /65.0
-	};
+	);
 
 	vec3 fragHSV = rgb2hsv(FragColor.rgb);
 	float brightness = clamp(1.5*fragHSV.z, 0.1, 1.0);