Index: include/llvm/Support/GraphWriter.h
===================================================================
--- include/llvm/Support/GraphWriter.h
+++ include/llvm/Support/GraphWriter.h
@@ -157,6 +157,8 @@
     std::string NodeAttributes = DTraits.getNodeAttributes(Node, G);
 
     O << "\tNode" << static_cast<const void*>(Node) << " [shape=record,";
+    O << "fontname=\"monospace\",";
+
     if (!NodeAttributes.empty()) O << NodeAttributes << ",";
     O << "label=\"{";