diff --git a/libs/video/renderer/glsl/glsl_bsp.c b/libs/video/renderer/glsl/glsl_bsp.c
index 6c4007cf1..2bd082d75 100644
--- a/libs/video/renderer/glsl/glsl_bsp.c
+++ b/libs/video/renderer/glsl/glsl_bsp.c
@@ -1181,14 +1181,16 @@ R_LoadSkys (const char *sky)
 {
 	const char *name;
 	int         i;
+	// NOTE: quake's world and GL's world are rotated relative to each other
+	// quake has x right, y in, z up. gl has x right, y up, z out
 	static const char *sky_suffix[] = { "ft", "bk", "lf", "rt", "up", "dn"};
 	static int  sky_target[] = {
 		GL_TEXTURE_CUBE_MAP_POSITIVE_X,
 		GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
+		GL_TEXTURE_CUBE_MAP_NEGATIVE_Z,
+		GL_TEXTURE_CUBE_MAP_POSITIVE_Z,
 		GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
 		GL_TEXTURE_CUBE_MAP_NEGATIVE_Y,
-		GL_TEXTURE_CUBE_MAP_POSITIVE_Z,
-		GL_TEXTURE_CUBE_MAP_NEGATIVE_Z,
 	};
 
 	if (!sky || !*sky)
diff --git a/libs/video/renderer/glsl/quakeskb.frag b/libs/video/renderer/glsl/quakeskb.frag
index 067e6a01d..10146e843 100644
--- a/libs/video/renderer/glsl/quakeskb.frag
+++ b/libs/video/renderer/glsl/quakeskb.frag
@@ -8,5 +8,10 @@ main (void)
 	vec3        dir = direction;
 
 	dir *= inversesqrt (dot (dir, dir));
-	gl_FragColor =  textureCube(sky, dir);
+
+	// NOTE: quake's world and GL's world are rotated relative to each other
+	// quake has x right, y in, z up. gl has x right, y up, z out
+	// The textures are loaded with GL's z (quake's y) already negated, so
+	// all that's needed here is to swizzle y and z.
+	gl_FragColor =  textureCube(sky, dir.xzy);
 }