1 files changed, 3 insertions, 1 deletions
diff --git a/src/mbgl/gl/uniform.hpp b/src/mbgl/gl/uniform.hpp
index 9f752de8af..6714379217 100644
--- a/src/mbgl/gl/uniform.hpp
+++ b/src/mbgl/gl/uniform.hpp
@@ -39,11 +39,13 @@ class UniformState {
 public:
     UniformState(UniformLocation location_ = -1) : location(location_) {}
 
-    void operator=(const Value& value) {
+    UniformState& operator=(const Value& value) {
         if (location >= 0 && (!current || *current != value)) {
             current = value;
             bindUniform(location, value);
         }
+
+        return *this;
     }
 
     UniformLocation location;