diff --git a/aws-cpp-sdk-core/source/client/CoreErrors.cpp b/aws-cpp-sdk-core/source/client/CoreErrors.cpp
index 8c2c288dcd4f..b0b79faaa752 100644
--- a/aws-cpp-sdk-core/source/client/CoreErrors.cpp
+++ b/aws-cpp-sdk-core/source/client/CoreErrors.cpp
@@ -69,6 +69,7 @@ void CoreErrorsMapper::InitCoreErrorsMapper()
     s_CoreErrorsMapper->emplace("ThrottlingException", AWSError<CoreErrors>(CoreErrors::THROTTLING, true));
     s_CoreErrorsMapper->emplace("ThrottledException", AWSError<CoreErrors>(CoreErrors::THROTTLING, true));
     s_CoreErrorsMapper->emplace("Throttling", AWSError<CoreErrors>(CoreErrors::THROTTLING, true));
+    s_CoreErrorsMapper->emplace("TooManyRequestsException", AWSError<CoreErrors>(CoreErrors::THROTTLING, true));
     s_CoreErrorsMapper->emplace("ValidationErrorException", AWSError<CoreErrors>(CoreErrors::VALIDATION, false));
     s_CoreErrorsMapper->emplace("ValidationException", AWSError<CoreErrors>(CoreErrors::VALIDATION, false));
     s_CoreErrorsMapper->emplace("ValidationError", AWSError<CoreErrors>(CoreErrors::VALIDATION, false));