diff --git a/src/tt.cpp b/src/tt.cpp
index efaf9928..3d2fe48a 100644
--- a/src/tt.cpp
+++ b/src/tt.cpp
@@ -113,7 +113,7 @@ void TranspositionTable::store(const Key key, Value v, Bound b, Depth d, Move m,
       // Implement replace strategy
       if (  (    tte->generation8 == generation || tte->bound() == BOUND_EXACT)
           - (replace->generation8 == generation)
-          < (tte->depth16 < replace->depth16))
+          - (tte->depth16 < replace->depth16) < 0)
           replace = tte;
   }