diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp
index f11026f..f73a5a3 100644
--- a/lib/CodeGen/MachineInstr.cpp
+++ b/lib/CodeGen/MachineInstr.cpp
@@ -1148,10 +1148,10 @@
     // TODO: print InlinedAtLoc information
 
     DebugLocTuple DLT = MF->getDebugLocTuple(debugLoc);
-    DICompileUnit CU(DLT.Scope);
+    DIScope Scope(DLT.Scope);
     OS << " dbg:";
-    if (!CU.isNull())
-      OS << CU.getDirectory() << '/' << CU.getFilename() << ":";
+    if (!Scope.isNull())
+      OS << Scope.getDirectory() << ':' << Scope.getFilename() << ':';
     OS << DLT.Line << ":" << DLT.Col;
   }