diff --git a/src/mips/full-codegen-mips.cc b/src/mips/full-codegen-mips.cc
index 9ae025d7b2..246fe2a13f 100644
--- a/src/mips/full-codegen-mips.cc
+++ b/src/mips/full-codegen-mips.cc
@@ -1149,7 +1149,7 @@ void FullCodeGenerator::VisitForInStatement(ForInStatement* stmt) {
   // We got a map in register v0. Get the enumeration cache from it.
   __ bind(&use_cache);
   __ LoadInstanceDescriptors(v0, a1, a2);
-  __ lw(a1, FieldMemOperand(a1, DescriptorArray::kEnumerationIndexOffset));
+  __ lw(a1, FieldMemOperand(a1, DescriptorArray::kLastAddedOffset));
   __ lw(a2, FieldMemOperand(a1, DescriptorArray::kEnumCacheBridgeCacheOffset));
 
   // Set up the four remaining stack slots.
diff --git a/src/mips/lithium-codegen-mips.cc b/src/mips/lithium-codegen-mips.cc
index 737aafcc9b..a090242f06 100644
--- a/src/mips/lithium-codegen-mips.cc
+++ b/src/mips/lithium-codegen-mips.cc
@@ -5168,7 +5168,7 @@ void LCodeGen::DoForInCacheArray(LForInCacheArray* instr) {
   Register scratch = ToRegister(instr->scratch());
   __ LoadInstanceDescriptors(map, result, scratch);
   __ lw(result,
-        FieldMemOperand(result, DescriptorArray::kEnumerationIndexOffset));
+        FieldMemOperand(result, DescriptorArray::kLastAddedOffset));
   __ lw(result,
         FieldMemOperand(result, FixedArray::SizeFor(instr->idx())));
   DeoptimizeIf(eq, instr->environment(), result, Operand(zero_reg));
diff --git a/src/mips/macro-assembler-mips.cc b/src/mips/macro-assembler-mips.cc
index 6233b830e0..a0fea77053 100644
--- a/src/mips/macro-assembler-mips.cc
+++ b/src/mips/macro-assembler-mips.cc
@@ -5339,7 +5339,7 @@ void MacroAssembler::CheckEnumCache(Register null_value, Label* call_runtime) {
   // Check that there is an enum cache in the non-empty instance
   // descriptors (a3).  This is the case if the next enumeration
   // index field does not contain a smi.
-  lw(a3, FieldMemOperand(a3, DescriptorArray::kEnumerationIndexOffset));
+  lw(a3, FieldMemOperand(a3, DescriptorArray::kLastAddedOffset));
   JumpIfSmi(a3, call_runtime);
 
   // For all objects but the receiver, check that the cache is empty.