diff --git a/qbsp/portals.c b/qbsp/portals.c
index 676d4322..39d1cd2e 100644
--- a/qbsp/portals.c
+++ b/qbsp/portals.c
@@ -539,7 +539,7 @@ Builds the exact polyhedrons for the nodes and leafs
 ==================
 */
 void
-PortalizeWorld(const mapentity_t *ent, node_t *headnode)
+PortalizeWorld(const mapentity_t *ent, node_t *headnode, const int hullnum)
 {
     Message(msgProgress, "Portalize");
 
diff --git a/qbsp/qbsp.c b/qbsp/qbsp.c
index f90f7010..7af35d53 100644
--- a/qbsp/qbsp.c
+++ b/qbsp/qbsp.c
@@ -74,7 +74,7 @@ ProcessEntity(mapentity_t *ent)
 	nodes = SolidBSP(ent, surfs, true);
 	if (ent == pWorldEnt && !options.fNofill) {
 	    // assume non-world bmodels are simple
-	    PortalizeWorld(ent, nodes);
+	    PortalizeWorld(ent, nodes, hullnum);
 	    if (FillOutside(nodes, hullnum)) {
 		// Free portals before regenerating new nodes
 		FreeAllPortals(nodes);
@@ -97,7 +97,7 @@ ProcessEntity(mapentity_t *ent)
 	// some portals are solid polygons, and some are paths to other leafs
 	if (ent == pWorldEnt && !options.fNofill) {
 	    // assume non-world bmodels are simple
-	    PortalizeWorld(ent, nodes);
+	    PortalizeWorld(ent, nodes, hullnum);
 
 	    if (FillOutside(nodes, hullnum)) {
 		FreeAllPortals(nodes);
@@ -112,7 +112,7 @@ ProcessEntity(mapentity_t *ent)
 		nodes = SolidBSP(ent, surfs, false);
 
 		// make the real portals for vis tracing
-		PortalizeWorld(ent, nodes);
+		PortalizeWorld(ent, nodes, hullnum);
 
 		TJunc(ent, nodes);
 	    }
diff --git a/qbsp/qbsp.h b/qbsp/qbsp.h
index c7128bb5..438abf33 100644
--- a/qbsp/qbsp.h
+++ b/qbsp/qbsp.h
@@ -639,7 +639,7 @@ void WriteEntitiesToString(void);
 void FixRotateOrigin(mapentity_t *ent);
 void Brush_LoadEntity(mapentity_t *ent, const int hullnum);
 surface_t *CSGFaces(const mapentity_t *ent);
-void PortalizeWorld(const mapentity_t *ent, node_t *headnode);
+void PortalizeWorld(const mapentity_t *ent, node_t *headnode, const int hullnum);
 void TJunc(const mapentity_t *ent, node_t *headnode);
 node_t *SolidBSP(const mapentity_t *ent, surface_t *surfhead, bool midsplit);
 void MakeFaceEdges(mapentity_t *ent, node_t *headnode);