diff --git a/src/pathfinding.cpp b/src/pathfinding.cpp
index d96b7621f668c..cc86f35c5b6b3 100644
--- a/src/pathfinding.cpp
+++ b/src/pathfinding.cpp
@@ -317,8 +317,8 @@ std::vector<tripoint> map::route( const tripoint &f, const tripoint &t,
                         // Climbing fences
                         newg += climb_cost;
                     } else if( doors && ( terrain.open || furniture.open ) &&
-                               ( !terrain.has_flag( ter_furn_flag::TFLAG_OPENCLOSE_INSIDE ) ||
-                                 !furniture.has_flag( ter_furn_flag::TFLAG_OPENCLOSE_INSIDE ) ||
+                               ( ( !terrain.has_flag( ter_furn_flag::TFLAG_OPENCLOSE_INSIDE ) &&
+                                   !furniture.has_flag( ter_furn_flag::TFLAG_OPENCLOSE_INSIDE ) ) ||
                                  !is_outside( cur ) ) ) {
                         // Only try to open INSIDE doors from the inside
                         // To open and then move onto the tile