diff --git a/lib/Frontend/LayoutOverrideSource.cpp b/lib/Frontend/LayoutOverrideSource.cpp
index eb7865e..ca1dcd3 100644
--- a/lib/Frontend/LayoutOverrideSource.cpp
+++ b/lib/Frontend/LayoutOverrideSource.cpp
@@ -174,7 +174,7 @@
     if (NumFields >= Known->second.FieldOffsets.size())
       continue;
     
-    FieldOffsets[*F] = Known->second.FieldOffsets[NumFields];
+    FieldOffsets[&*F] = Known->second.FieldOffsets[NumFields];
   }
   
   // Wrong number of fields.