diff --git a/clang/Sema/Sema.cpp b/clang/Sema/Sema.cpp
index 76771d0d5c92..f783302d5587 100644
--- a/clang/Sema/Sema.cpp
+++ b/clang/Sema/Sema.cpp
@@ -30,8 +30,8 @@ Sema::Sema(Preprocessor &pp, ASTContext &ctxt, std::vector<Decl*> &prevInGroup)
   KnownFunctionIDs[ id_fprintf ] = &IT.get("fprintf");
   KnownFunctionIDs[ id_sprintf ] = &IT.get("sprintf");
   KnownFunctionIDs[ id_snprintf ] = &IT.get("snprintf");
-  KnownFunctionIDs[ id_vsnprintf ] = &IT.get("vsnprintf");
   KnownFunctionIDs[ id_asprintf ] = &IT.get("asprintf");
+  KnownFunctionIDs[ id_vsnprintf ] = &IT.get("vsnprintf");
   KnownFunctionIDs[ id_vasprintf ] = &IT.get("vasprintf");
   KnownFunctionIDs[ id_vfprintf ] = &IT.get("vfprintf");
   KnownFunctionIDs[ id_vsprintf ] = &IT.get("vsprintf");
diff --git a/clang/Sema/Sema.h b/clang/Sema/Sema.h
index 3cf75328c85d..ecf30626961d 100644
--- a/clang/Sema/Sema.h
+++ b/clang/Sema/Sema.h
@@ -75,8 +75,8 @@ class Sema : public Action {
     id_fprintf,
     id_sprintf,
     id_snprintf,
-    id_vsnprintf,
     id_asprintf,
+    id_vsnprintf,
     id_vasprintf,
     id_vfprintf,
     id_vsprintf,