diff --git a/lib/Frontend/InitHeaderSearch.cpp b/lib/Frontend/InitHeaderSearch.cpp
index 9898298..f9ccb8a 100644
--- a/lib/Frontend/InitHeaderSearch.cpp
+++ b/lib/Frontend/InitHeaderSearch.cpp
@@ -605,7 +605,7 @@
                  false, false, false, /*IgnoreSysRoot=*/ true);
   }
 
-  if (!HSOpts.UseStandardIncludes)
+  if (HSOpts.UseStandardIncludes)
     Init.AddDefaultSystemIncludePaths(Lang, Triple);
 
   Init.Realize();