diff --git a/lib/Frontend/DocumentXML.cpp b/lib/Frontend/DocumentXML.cpp
index ac1d7d2..7562d2a 100644
--- a/lib/Frontend/DocumentXML.cpp
+++ b/lib/Frontend/DocumentXML.cpp
@@ -566,6 +566,8 @@
       case LinkageSpecDecl::lang_cxx:  addAttribute("lang", "CXX");  break;
       default:                         assert(0 && "Unexpected lang id");
     }
+  } else if (isa<FileScopeAsmDecl>(D)) {
+    // FIXME: Implement this
   } else {
     assert(0 && "Unexpected decl");
   }