diff --git a/compiler/dex/quick/mir_to_lir.cc b/compiler/dex/quick/mir_to_lir.cc
index e7160ad..0ac1299 100644
--- a/compiler/dex/quick/mir_to_lir.cc
+++ b/compiler/dex/quick/mir_to_lir.cc
@@ -1235,6 +1235,7 @@
       // Combine check and work halves of throwing instruction.
       MIR* work_half = mir->meta.throw_insn;
       mir->dalvikInsn.opcode = work_half->dalvikInsn.opcode;
+      mir->optimization_flags = work_half->optimization_flags;
       mir->meta = work_half->meta;  // Whatever the work_half had, we need to copy it.
       opcode = work_half->dalvikInsn.opcode;
       SSARepresentation* ssa_rep = work_half->ssa_rep;