diff --git a/lib/VMCore/AsmWriter.cpp b/lib/VMCore/AsmWriter.cpp
index cd7b8a675d2..1b98d55dbac 100644
--- a/lib/VMCore/AsmWriter.cpp
+++ b/lib/VMCore/AsmWriter.cpp
@@ -1778,7 +1778,8 @@ void Value::print(raw_ostream &OS, AssemblyAnnotationWriter *AAW) const {
   } else if (isa<InlineAsm>(this)) {
     WriteAsOperand(OS, this, true, 0);
   } else {
-    assert(0 && "Unknown value to print out!");
+    // FIXME: PseudoSourceValue breaks this!
+    //assert(0 && "Unknown value to print out!");
   }
 }