diff --git a/include/qbsp/portals.hh b/include/qbsp/portals.hh
index a372e305..6012c0aa 100644
--- a/include/qbsp/portals.hh
+++ b/include/qbsp/portals.hh
@@ -74,7 +74,6 @@ enum class portaltype_t {
 };
 std::list<std::unique_ptr<buildportal_t>> MakeTreePortals_r(tree_t *tree, node_t *node, portaltype_t type, std::list<std::unique_ptr<buildportal_t>> boundary_portals, portalstats_t &stats);
 void MakeTreePortals(tree_t *tree);
-void AssertNoPortals(tree_t *tree);
 std::list<std::unique_ptr<buildportal_t>> MakeHeadnodePortals(tree_t *tree);
 void MakePortalsFromBuildportals(tree_t *tree, std::list<std::unique_ptr<buildportal_t>> buildportals);
 void EmitAreaPortals(node_t *headnode);
diff --git a/qbsp/portals.cc b/qbsp/portals.cc
index 2f88973d..74b5a3f6 100644
--- a/qbsp/portals.cc
+++ b/qbsp/portals.cc
@@ -521,8 +521,6 @@ void MakeTreePortals(tree_t *tree)
 
     FreeTreePortals(tree);
 
-    AssertNoPortals(tree);
-
     portalstats_t stats{};
 
     auto headnodeportals = MakeHeadnodePortals(tree);
@@ -539,23 +537,6 @@ void MakeTreePortals(tree_t *tree)
     logging::print(logging::flag::STAT, "       {:8} tree portals\n", tree->portals.size());
 }
 
-static void AssertNoPortals_r(node_t *node)
-{
-    Q_assert(!node->portals);
-
-    if (!node->is_leaf) {
-        AssertNoPortals_r(node->children[0]);
-        AssertNoPortals_r(node->children[1]);
-    }
-}
-
-void AssertNoPortals(tree_t *tree)
-{
-    AssertNoPortals_r(tree->headnode);
-    Q_assert(!tree->outside_node.portals);
-    Q_assert(tree->portals.empty());
-}
-
 /*
 =========================================================
 
diff --git a/qbsp/prtfile.cc b/qbsp/prtfile.cc
index dffb4665..329663d0 100644
--- a/qbsp/prtfile.cc
+++ b/qbsp/prtfile.cc
@@ -263,8 +263,6 @@ void WritePortalFile(tree_t *tree)
 
     FreeTreePortals(tree);
 
-    AssertNoPortals(tree);
-
     MakeHeadnodePortals(tree);
 
     portalstats_t stats{};