diff --git a/source/shared_lib/sources/graphics/model.cpp b/source/shared_lib/sources/graphics/model.cpp
index b7145e26..b1c3611c 100644
--- a/source/shared_lib/sources/graphics/model.cpp
+++ b/source/shared_lib/sources/graphics/model.cpp
@@ -1578,7 +1578,8 @@ void Model::autoJoinMeshFrames() {
 		       mesh_key += string("_") + intToStr(mesh.getFrameCount()) +
 		    		       string("_") + intToStr(mesh.getTwoSided()) +
 				           string("_") + intToStr(mesh.getCustomTexture()) +
-				           string("_") + intToStr(mesh.getNoSelect());
+				           string("_") + intToStr(mesh.getNoSelect()) +
+				           string("_") + floatToStr(mesh.getOpacity());
 
 		joinedMeshes[mesh_key].add(index,&mesh);
 		if(haveJoinedMeshes == false && joinedMeshes[mesh_key].size() > 1) {