diff --git a/src/game/entity.cpp b/src/game/entity.cpp
index 942f872..5cf0152 100644
--- a/src/game/entity.cpp
+++ b/src/game/entity.cpp
@@ -167,11 +167,11 @@ bool game::EntityOccurrence::Sweep(const glm::vec3& target_position, float& hit_
 {
 	if (hit_portal)
 	{
-		*hit_portal = sector_->TestPortalContact(bt_capsule_, basis_, position_);
+		*hit_portal = sector_->TestPortalContact(bt_capsule_, inv_normal_basis_, position_);
 	
 		if (!*hit_portal)
 		{
-			*hit_portal = sector_->TestPortalContact(bt_capsule_, basis_, target_position);
+			*hit_portal = sector_->TestPortalContact(bt_capsule_, inv_normal_basis_, target_position);
 		}
 	}