diff --git a/lib/Transforms/Scalar/MemCpyOptimizer.cpp b/lib/Transforms/Scalar/MemCpyOptimizer.cpp
index 6c6db60cc3e..7335626a8af 100644
--- a/lib/Transforms/Scalar/MemCpyOptimizer.cpp
+++ b/lib/Transforms/Scalar/MemCpyOptimizer.cpp
@@ -147,7 +147,7 @@ struct MemsetRange {
 } // end anon namespace
 
 bool MemsetRange::isProfitableToUseMemset(const TargetData &TD) const {
-  // If we found more than 8 stores to merge or 64 bytes, use memset.
+  // If we found more than 4 stores to merge or 16 bytes, use memset.
   if (TheStores.size() >= 4 || End-Start >= 16) return true;
 
   // If there is nothing to merge, don't do anything.