diff --git a/lib/Bitcode/Reader/Deserialize.cpp b/lib/Bitcode/Reader/Deserialize.cpp
index b8e720a..45ed61a 100644
--- a/lib/Bitcode/Reader/Deserialize.cpp
+++ b/lib/Bitcode/Reader/Deserialize.cpp
@@ -353,7 +353,7 @@
   assert (!HasFinalPtr(E) && "Pointer already registered.");
 
 #ifdef DEBUG_BACKPATCH
-  errs() << "RegisterPtr: " << PtrId << " => " << Ptr << "\n";
+  dbgs() << "RegisterPtr: " << PtrId << " => " << Ptr << "\n";
 #endif 
   
   SetPtr(E,Ptr);
@@ -373,7 +373,7 @@
     PtrRef = GetFinalPtr(E);
 
 #ifdef DEBUG_BACKPATCH
-    errs() << "ReadUintPtr: " << PtrId
+    dbgs() << "ReadUintPtr: " << PtrId
            << " <-- " <<  (void*) GetFinalPtr(E) << '\n';
 #endif    
   }
@@ -382,7 +382,7 @@
             "Client forbids backpatching for this pointer.");
     
 #ifdef DEBUG_BACKPATCH
-    errs() << "ReadUintPtr: " << PtrId << " (NO PTR YET)\n";
+    dbgs() << "ReadUintPtr: " << PtrId << " (NO PTR YET)\n";
 #endif
     
     // Register backpatch.  Check the freelist for a BPNode.