diff --git a/lib/VMCore/Instruction.cpp b/lib/VMCore/Instruction.cpp
index 4fc9f3c7e77..99fd8d09e5b 100644
--- a/lib/VMCore/Instruction.cpp
+++ b/lib/VMCore/Instruction.cpp
@@ -380,6 +380,7 @@ bool Instruction::isTrapping(unsigned op) {
   case Call:
   case Invoke:
   case VAArg:
+  case Free:
     return true;
   default:
     return false;