diff --git a/source/graphics/TextureManager.cpp b/source/graphics/TextureManager.cpp
index 91a42f6050..529be9371a 100644
--- a/source/graphics/TextureManager.cpp
+++ b/source/graphics/TextureManager.cpp
@@ -73,6 +73,16 @@ struct TPequal_to
 	}
 };
 
+std::size_t hash_value(const CTexturePtr& v)
+{
+	TPhash h;
+	return h(v);
+}
+std::size_t hash_value(const CTextureProperties& v)
+{
+	TPhash h;
+	return h(v);
+}
 
 class CTextureManagerImpl
 {
diff --git a/source/graphics/TextureManager.h b/source/graphics/TextureManager.h
index 296a3c82e9..43ebd3c182 100644
--- a/source/graphics/TextureManager.h
+++ b/source/graphics/TextureManager.h
@@ -306,4 +306,7 @@ private:
 	std::weak_ptr<CTexture> m_Self;
 };
 
+std::size_t hash_value(const CTexturePtr& v);
+std::size_t hash_value(const CTextureProperties& v);
+
 #endif // INCLUDED_TEXTUREMANAGER