diff --git a/src/crankshaft/ppc/lithium-codegen-ppc.cc b/src/crankshaft/ppc/lithium-codegen-ppc.cc
index 2b72fd5099..89ddd4dac8 100644
--- a/src/crankshaft/ppc/lithium-codegen-ppc.cc
+++ b/src/crankshaft/ppc/lithium-codegen-ppc.cc
@@ -2756,6 +2756,7 @@ void LCodeGen::DoHasInPrototypeChainAndBranch(
     LHasInPrototypeChainAndBranch* instr) {
   Register const object = ToRegister(instr->object());
   Register const object_map = scratch0();
+  Register const object_instance_type = ip;
   Register const object_prototype = object_map;
   Register const prototype = ToRegister(instr->prototype());
 
@@ -2771,6 +2772,8 @@ void LCodeGen::DoHasInPrototypeChainAndBranch(
   __ LoadP(object_map, FieldMemOperand(object, HeapObject::kMapOffset));
   Label loop;
   __ bind(&loop);
+  __ CompareInstanceType(object_map, object_instance_type, JS_PROXY_TYPE);
+  DeoptimizeIf(eq, instr, Deoptimizer::kProxy);
   __ LoadP(object_prototype,
            FieldMemOperand(object_map, Map::kPrototypeOffset));
   __ cmp(object_prototype, prototype);
diff --git a/src/crankshaft/ppc/lithium-ppc.cc b/src/crankshaft/ppc/lithium-ppc.cc
index b38982a18b..ec4a5519a6 100644
--- a/src/crankshaft/ppc/lithium-ppc.cc
+++ b/src/crankshaft/ppc/lithium-ppc.cc
@@ -995,7 +995,9 @@ LInstruction* LChunkBuilder::DoHasInPrototypeChainAndBranch(
     HHasInPrototypeChainAndBranch* instr) {
   LOperand* object = UseRegister(instr->object());
   LOperand* prototype = UseRegister(instr->prototype());
-  return new (zone()) LHasInPrototypeChainAndBranch(object, prototype);
+  LHasInPrototypeChainAndBranch* result =
+      new (zone()) LHasInPrototypeChainAndBranch(object, prototype);
+  return AssignEnvironment(result);
 }