diff --git a/code/renderergl2/tr_backend.c b/code/renderergl2/tr_backend.c
index 7387101b..5c160ab4 100644
--- a/code/renderergl2/tr_backend.c
+++ b/code/renderergl2/tr_backend.c
@@ -455,7 +455,7 @@ void RB_RenderDrawSurfList( drawSurf_t *drawSurfs, int numDrawSurfs ) {
 
 	for (i = 0, drawSurf = drawSurfs ; i < numDrawSurfs ; i++, drawSurf++) {
 		if ( drawSurf->sort == oldSort && drawSurf->cubemapIndex == oldCubemapIndex) {
-			if (backEnd.depthFill && shader && shader->sort != SS_OPAQUE)
+			if (backEnd.depthFill && shader && (shader->sort != SS_OPAQUE && shader->sort != SS_PORTAL))
 				continue;
 
 			// fast path, same as previous sort
@@ -484,7 +484,7 @@ void RB_RenderDrawSurfList( drawSurf_t *drawSurfs, int numDrawSurfs ) {
 			oldCubemapIndex = cubemapIndex;
 		}
 
-		if (backEnd.depthFill && shader && shader->sort != SS_OPAQUE)
+		if (backEnd.depthFill && shader && (shader->sort != SS_OPAQUE && shader->sort != SS_PORTAL))
 			continue;
 
 		//