diff --git a/qbsp/outside.cc b/qbsp/outside.cc
index 70fbe67f..c7e7bf49 100644
--- a/qbsp/outside.cc
+++ b/qbsp/outside.cc
@@ -338,7 +338,7 @@ ClearOutFaces(node_t *node)
     }
 
     // visit the leaf
-    if (!node->contents.is_solid(options.target_game)) {
+    if (!node->contents.is_structural_solid(options.target_game)) {
         return;
     }
 
@@ -365,8 +365,7 @@ OutLeafsToSolid_r(node_t *node, int *outleafs_count)
         return;
     
     // Don't fill sky, or count solids as outleafs
-    if (node->contents.is_sky(options.target_game)
-        || node->contents.is_solid(options.target_game))
+    if (node->contents.is_structural_sky_or_solid(options.target_game))
         return;
 
     // Now check all faces touching the leaf. If any of them are partially going into the occupied part of the map,