diff --git a/payload_consumer/payload_constants.cc b/payload_consumer/payload_constants.cc
index 213d798..a2368a4 100644
--- a/payload_consumer/payload_constants.cc
+++ b/payload_consumer/payload_constants.cc
@@ -42,7 +42,7 @@
 
 const char kDeltaMagic[4] = {'C', 'r', 'A', 'U'};
 
-const char* InstallOperationTypeName(InstallOperation_Type op_type) {
+const char* InstallOperationTypeName(InstallOperation::Type op_type) {
   switch (op_type) {
     case InstallOperation::BSDIFF:
       return "BSDIFF";
diff --git a/payload_consumer/payload_constants.h b/payload_consumer/payload_constants.h
index 7f76898..1642488 100644
--- a/payload_consumer/payload_constants.h
+++ b/payload_consumer/payload_constants.h
@@ -77,7 +77,7 @@
 const uint64_t kSparseHole = std::numeric_limits<uint64_t>::max();
 
 // Return the name of the operation type.
-const char* InstallOperationTypeName(InstallOperation_Type op_type);
+const char* InstallOperationTypeName(InstallOperation::Type op_type);
 
 }  // namespace chromeos_update_engine