diff --git a/test/core/end2end/cq_verifier.cc b/test/core/end2end/cq_verifier.cc
index 0d1d69d1191..b110ed6f282 100644
--- a/test/core/end2end/cq_verifier.cc
+++ b/test/core/end2end/cq_verifier.cc
@@ -304,9 +304,9 @@ void cq_verify_empty_timeout(cq_verifier* v, int timeout_sec) {
 void cq_verify_empty(cq_verifier* v) { cq_verify_empty_timeout(v, 1); }
 
 void cq_maybe_expect_completion(cq_verifier* v, const char* file, int line,
-                                void* tag, bool /*success*/, bool* seen) {
-  v->maybe_expectations.emplace_back(file, line, GRPC_OP_COMPLETE, tag, true,
-                                     true, seen);
+                                void* tag, bool success, bool* seen) {
+  v->maybe_expectations.emplace_back(file, line, GRPC_OP_COMPLETE, tag,
+                                     true /* check_success */, success, seen);
 }
 
 static void add(cq_verifier* v, const char* file, int line,