diff --git a/src/OpenMesh/Core/Mesh/Handles.hh b/src/OpenMesh/Core/Mesh/Handles.hh
index 89dd9d27..1488ce09 100644
--- a/src/OpenMesh/Core/Mesh/Handles.hh
+++ b/src/OpenMesh/Core/Mesh/Handles.hh
@@ -99,7 +99,7 @@ public:
   void __decrement() { --idx_; }
 
   void __increment(int amount) { idx_ += amount; }
-  void __decrement(int amount) { idx_ += amount; }
+  void __decrement(int amount) { idx_ -= amount; }
 
 private: