diff --git a/components/detournavigator/recastmeshmanager.cpp b/components/detournavigator/recastmeshmanager.cpp
index e4e5b76449..2eeb90a9b5 100644
--- a/components/detournavigator/recastmeshmanager.cpp
+++ b/components/detournavigator/recastmeshmanager.cpp
@@ -117,7 +117,7 @@ namespace DetourNavigator
         return result;
     }
 
-    std::shared_ptr<RecastMesh> RecastMeshManager::getMesh()
+    std::shared_ptr<RecastMesh> RecastMeshManager::getMesh() const
     {
         TileBounds tileBounds = mTileBounds;
         tileBounds.mMin /= mSettings.mRecastScaleFactor;
diff --git a/components/detournavigator/recastmeshmanager.hpp b/components/detournavigator/recastmeshmanager.hpp
index 1cd35ca467..e1c1567cb3 100644
--- a/components/detournavigator/recastmeshmanager.hpp
+++ b/components/detournavigator/recastmeshmanager.hpp
@@ -52,7 +52,7 @@ namespace DetourNavigator
 
         std::optional<Cell> removeHeightfield(const osg::Vec2i& cellPosition);
 
-        std::shared_ptr<RecastMesh> getMesh();
+        std::shared_ptr<RecastMesh> getMesh() const;
 
         bool isEmpty() const;
 
diff --git a/components/detournavigator/tilecachedrecastmeshmanager.cpp b/components/detournavigator/tilecachedrecastmeshmanager.cpp
index 2b8c85b8a3..8033ca89ac 100644
--- a/components/detournavigator/tilecachedrecastmeshmanager.cpp
+++ b/components/detournavigator/tilecachedrecastmeshmanager.cpp
@@ -190,11 +190,11 @@ namespace DetourNavigator
         return result;
     }
 
-    std::shared_ptr<RecastMesh> TileCachedRecastMeshManager::getMesh(const TilePosition& tilePosition)
+    std::shared_ptr<RecastMesh> TileCachedRecastMeshManager::getMesh(const TilePosition& tilePosition) const
     {
         const auto manager = [&] () -> std::shared_ptr<CachedRecastMeshManager>
         {
-            const auto tiles = mTiles.lock();
+            const auto tiles = mTiles.lockConst();
             const auto it = tiles->find(tilePosition);
             if (it == tiles->end())
                 return nullptr;
@@ -205,7 +205,7 @@ namespace DetourNavigator
         return manager->getMesh();
     }
 
-    bool TileCachedRecastMeshManager::hasTile(const TilePosition& tilePosition)
+    bool TileCachedRecastMeshManager::hasTile(const TilePosition& tilePosition) const
     {
         return mTiles.lockConst()->count(tilePosition);
     }
@@ -215,9 +215,9 @@ namespace DetourNavigator
         return mRevision;
     }
 
-    void TileCachedRecastMeshManager::reportNavMeshChange(const TilePosition& tilePosition, Version recastMeshVersion, Version navMeshVersion)
+    void TileCachedRecastMeshManager::reportNavMeshChange(const TilePosition& tilePosition, Version recastMeshVersion, Version navMeshVersion) const
     {
-        const auto tiles = mTiles.lock();
+        const auto tiles = mTiles.lockConst();
         const auto it = tiles->find(tilePosition);
         if (it == tiles->end())
             return;
diff --git a/components/detournavigator/tilecachedrecastmeshmanager.hpp b/components/detournavigator/tilecachedrecastmeshmanager.hpp
index f8cb5a8b0e..f10260a4dd 100644
--- a/components/detournavigator/tilecachedrecastmeshmanager.hpp
+++ b/components/detournavigator/tilecachedrecastmeshmanager.hpp
@@ -86,20 +86,20 @@ namespace DetourNavigator
 
         std::optional<Cell> removeHeightfield(const osg::Vec2i& cellPosition);
 
-        std::shared_ptr<RecastMesh> getMesh(const TilePosition& tilePosition);
+        std::shared_ptr<RecastMesh> getMesh(const TilePosition& tilePosition) const;
 
-        bool hasTile(const TilePosition& tilePosition);
+        bool hasTile(const TilePosition& tilePosition) const;
 
         template <class Function>
-        void forEachTile(Function&& function)
+        void forEachTile(Function&& function) const
         {
-            for (auto& [tilePosition, recastMeshManager] : *mTiles.lock())
+            for (auto& [tilePosition, recastMeshManager] : *mTiles.lockConst())
                 function(tilePosition, *recastMeshManager);
         }
 
         std::size_t getRevision() const;
 
-        void reportNavMeshChange(const TilePosition& tilePosition, Version recastMeshVersion, Version navMeshVersion);
+        void reportNavMeshChange(const TilePosition& tilePosition, Version recastMeshVersion, Version navMeshVersion) const;
 
     private:
         using TilesMap = std::map<TilePosition, std::shared_ptr<CachedRecastMeshManager>>;