diff --git a/test/extensions/filters/http/admission_control/admission_control_filter_test.cc b/test/extensions/filters/http/admission_control/admission_control_filter_test.cc
index 5aaa6ba1658db..ad1c3ca28543c 100644
--- a/test/extensions/filters/http/admission_control/admission_control_filter_test.cc
+++ b/test/extensions/filters/http/admission_control/admission_control_filter_test.cc
@@ -149,7 +149,7 @@ sampling_window: 10s
   EXPECT_CALL(controller_, requestSuccessCount()).Times(0);
 
   // We expect no rejections.
-  Http::RequestHeaderMapImpl request_headers;
+  Http::TestRequestHeaderMapImpl request_headers;
   EXPECT_EQ(Http::FilterHeadersStatus::Continue, filter_->decodeHeaders(request_headers, true));
 }