diff --git a/Cabal/src/Distribution/Simple/Compiler.hs b/Cabal/src/Distribution/Simple/Compiler.hs
index 0dc5cc3b3b3..175a2a589a8 100644
--- a/Cabal/src/Distribution/Simple/Compiler.hs
+++ b/Cabal/src/Distribution/Simple/Compiler.hs
@@ -334,7 +334,7 @@ intToOptimisationLevel i
           ++ show maxLevel
   where
     minLevel = fromEnum (minBound :: OptimisationLevel)
-    maxLevel = i <= fromEnum (maxBound :: OptimisationLevel)
+    maxLevel = fromEnum (maxBound :: OptimisationLevel)
 
 -- ------------------------------------------------------------