diff --git a/libsrc/interface/nginterface_v2.cpp b/libsrc/interface/nginterface_v2.cpp
index f26971c5..9233c5a7 100644
--- a/libsrc/interface/nginterface_v2.cpp
+++ b/libsrc/interface/nginterface_v2.cpp
@@ -1361,7 +1361,7 @@ size_t Ngx_Mesh :: GetGlobalVertexNum (int locnum) const
   
 FlatArray<int>  Ngx_Mesh :: GetDistantProcs (int nodetype, int locnum) const
   {
-    // #ifdef PARALLEL
+#ifdef PARALLEL
     if (mesh->GetCommunicator().Size() == 1)
       return FlatArray<int>(0,nullptr);
     
@@ -1379,9 +1379,9 @@ FlatArray<int>  Ngx_Mesh :: GetDistantProcs (int nodetype, int locnum) const
       default:
 	return FlatArray<int>(0, nullptr);
       }
-    // #else
-    //     return FlatArray<int>(0,nullptr);
-    // #endif
+#else
+    return FlatArray<int>(0,nullptr);
+#endif
   }
 }