diff --git a/lldb/source/Commands/CommandObjectMultiword.cpp b/lldb/source/Commands/CommandObjectMultiword.cpp
index 80d6419..9194b1d 100644
--- a/lldb/source/Commands/CommandObjectMultiword.cpp
+++ b/lldb/source/Commands/CommandObjectMultiword.cpp
@@ -143,7 +143,7 @@
         }
       } else {
         result.AppendErrorWithFormat("'%s' does not have any subcommands.\n",
-                                     GetCommandName());
+                                     GetCommandName().str().c_str());
         result.SetStatus(eReturnStatusFailed);
       }
     }