diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
index 7deedfa..19a3e49 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
@@ -346,7 +346,8 @@
       GW.emitSimpleNode(0, "plaintext=circle", "GraphRoot");
       const SDNode *N = G->DAG.getRoot().Val;
       if (N && N->getNodeId() != -1)
-        GW.emitEdge(0, -1, &G->SUnits[N->getNodeId()], -1, "");
+        GW.emitEdge(0, -1, &G->SUnits[N->getNodeId()], -1,
+                    "color=blue,style=dashed");
     }
   };
 }