1 files changed, 5 insertions, 1 deletions
diff --git a/include/mbgl/style/expression/literal.hpp b/include/mbgl/style/expression/literal.hpp
index a0819c7e73..82983d78af 100644
--- a/include/mbgl/style/expression/literal.hpp
+++ b/include/mbgl/style/expression/literal.hpp
@@ -28,7 +28,11 @@ public:
         }
         return false;
     }
-    
+
+    std::vector<optional<Value>> possibleOutputs() const override {
+        return {{ value }};
+    }
+
 private:
     Value value;
 };