diff --git a/libraries/gpu/src/gpu/GLBackend.h b/libraries/gpu/src/gpu/GLBackend.h
index 7b9d69fbbd..9e9885c662 100644
--- a/libraries/gpu/src/gpu/GLBackend.h
+++ b/libraries/gpu/src/gpu/GLBackend.h
@@ -167,7 +167,7 @@ public:
         };
 
         using ShaderObjects = std::array< ShaderObject, NumVersions >;
-        using UniformMapping = std::vector<GLint>;
+        using UniformMapping = std::map<GLint, GLint>;
         using UniformMappingVersions = std::vector<UniformMapping>;