diff --git a/src/object_schema.hpp b/src/object_schema.hpp
index 0ede3f5d..4ede6ce5 100644
--- a/src/object_schema.hpp
+++ b/src/object_schema.hpp
@@ -25,7 +25,6 @@
 #include <vector>
 
 namespace realm {
-    class Property;
     class Group;
     struct Property;