diff --git a/spine-cpp/spine-cpp/include/spine/Physics.h b/spine-cpp/spine-cpp/include/spine/Physics.h
index de486f465..138533854 100644
--- a/spine-cpp/spine-cpp/include/spine/Physics.h
+++ b/spine-cpp/spine-cpp/include/spine/Physics.h
@@ -30,8 +30,8 @@
 #ifndef Spine_Physics_h
 #define Spine_Physics_h
 
-/// Determines how physics and other non-deterministic updates are applied.
 namespace spine {
+    /// Determines how physics and other non-deterministic updates are applied.
     enum Physics {
         /// Physics are not updated or applied.
         Physics_None,