diff --git a/contrib/moses2/FF/LexicalReordering/BidirectionalReorderingState.cpp b/contrib/moses2/FF/LexicalReordering/BidirectionalReorderingState.cpp
index bc27f2a68..8c1b409c3 100644
--- a/contrib/moses2/FF/LexicalReordering/BidirectionalReorderingState.cpp
+++ b/contrib/moses2/FF/LexicalReordering/BidirectionalReorderingState.cpp
@@ -54,7 +54,7 @@ size_t BidirectionalReorderingState::hash() const
 
 bool BidirectionalReorderingState::operator==(const FFState& o) const
 {
-  if (&o == this) return 0;
+  if (&o == this) return true;
 
   BidirectionalReorderingState const &other =
       static_cast<BidirectionalReorderingState const&>(o);
diff --git a/moses/FF/LexicalReordering/BidirectionalReorderingState.cpp b/moses/FF/LexicalReordering/BidirectionalReorderingState.cpp
index 22f550ba8..5d264e4c8 100644
--- a/moses/FF/LexicalReordering/BidirectionalReorderingState.cpp
+++ b/moses/FF/LexicalReordering/BidirectionalReorderingState.cpp
@@ -15,7 +15,7 @@ size_t BidirectionalReorderingState::hash() const
 
 bool BidirectionalReorderingState::operator==(const FFState& o) const
 {
-  if (&o == this) return 0;
+  if (&o == this) return true;
 
   BidirectionalReorderingState const &other
   = static_cast<BidirectionalReorderingState const&>(o);