diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index c54745f..79bb1cb 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -1330,7 +1330,7 @@
 /// CheckUnreachable - Check for unreachable code.
 void Sema::CheckUnreachable(AnalysisContext &AC) {
   // We avoid checking when there are errors, as the CFG won't faithfully match
-  // the users code.
+  // the user's code.
   if (getDiagnostics().hasErrorOccurred())
     return;
   if (Diags.getDiagnosticLevel(diag::warn_unreachable) == Diagnostic::Ignored)