1 files changed, 5 insertions, 1 deletions
diff --git a/indra/newview/llfetchedgltfmaterial.h b/indra/newview/llfetchedgltfmaterial.h
index 634a4853b0..4a33b9f05f 100644
--- a/indra/newview/llfetchedgltfmaterial.h
+++ b/indra/newview/llfetchedgltfmaterial.h
@@ -31,10 +31,14 @@
 #include "llviewertexture.h"
 
 class LLGLSLShader;
+class LLGLTFMaterialList;
+class LLTerrainMaterials;
 
 class LLFetchedGLTFMaterial: public LLGLTFMaterial
 {
-    friend class LLGLTFMaterialList; // for lifetime management
+    // for lifetime management
+    friend class LLGLTFMaterialList;
+    friend class LLTerrainMaterials;
 public:
     LLFetchedGLTFMaterial();
     virtual ~LLFetchedGLTFMaterial();