diff --git a/src/r_data/portalgroups.cpp b/src/r_data/portalgroups.cpp
index f1baac476c..a22ca157ce 100644
--- a/src/r_data/portalgroups.cpp
+++ b/src/r_data/portalgroups.cpp
@@ -461,9 +461,8 @@ static void GroupLinePortals()
 
 void InitPortalGroups()
 {
-	if (level.nodes.Size() == 0) return;
-
-	GroupSectorPortals();
+	if (level.nodes.Size() > 0)
+		GroupSectorPortals();
 	GroupLinePortals();
 }