diff --git a/api/sequence_checker_unittest.cc b/api/sequence_checker_unittest.cc
index 5a99148..a929c59 100644
--- a/api/sequence_checker_unittest.cc
+++ b/api/sequence_checker_unittest.cc
@@ -18,8 +18,11 @@
 #include "rtc_base/event.h"
 #include "rtc_base/platform_thread.h"
 #include "rtc_base/task_queue_for_test.h"
+#include "test/gmock.h"
 #include "test/gtest.h"
 
+using testing::HasSubstr;
+
 namespace webrtc {
 namespace {
 
@@ -116,6 +119,36 @@
       [&] { EXPECT_EQ(sequence_checker.IsCurrent(), !RTC_DCHECK_IS_ON); });
 }
 
+TEST(SequenceCheckerTest, ExpectationToString) {
+  TaskQueueForTest queue1;
+
+  SequenceChecker sequence_checker;
+  sequence_checker.Detach();
+
+  rtc::Event blocker;
+  queue1.PostTask([&blocker, &sequence_checker]() {
+    (void)sequence_checker.IsCurrent();
+    blocker.Set();
+  });
+
+  blocker.Wait(rtc::Event::kForever);
+
+#if RTC_DCHECK_IS_ON
+
+  EXPECT_THAT(ExpectationToString(&sequence_checker),
+              HasSubstr("# Expected: TQ:"));
+
+  // Test for the base class
+  webrtc_sequence_checker_internal::SequenceCheckerImpl* sequence_checker_base =
+      &sequence_checker;
+  EXPECT_THAT(ExpectationToString(sequence_checker_base),
+              HasSubstr("# Expected: TQ:"));
+
+#else
+  GTEST_ASSERT_EQ(ExpectationToString(&sequence_checker), "");
+#endif
+}
+
 class TestAnnotations {
  public:
   TestAnnotations() : test_var_(false) {}
diff --git a/rtc_base/synchronization/sequence_checker_internal.cc b/rtc_base/synchronization/sequence_checker_internal.cc
index c03ee94..2612e9e 100644
--- a/rtc_base/synchronization/sequence_checker_internal.cc
+++ b/rtc_base/synchronization/sequence_checker_internal.cc
@@ -104,13 +104,5 @@
 }
 #endif  // RTC_DCHECK_IS_ON
 
-std::string ExpectationToString(const SequenceCheckerImpl* checker) {
-#if RTC_DCHECK_IS_ON
-  return checker->ExpectationToString();
-#else
-  return std::string();
-#endif
-}
-
 }  // namespace webrtc_sequence_checker_internal
 }  // namespace webrtc
diff --git a/rtc_base/synchronization/sequence_checker_internal.h b/rtc_base/synchronization/sequence_checker_internal.h
index be89133..a20fbb0 100644
--- a/rtc_base/synchronization/sequence_checker_internal.h
+++ b/rtc_base/synchronization/sequence_checker_internal.h
@@ -63,11 +63,22 @@
   void Detach() {}
 };
 
-std::string ExpectationToString(const SequenceCheckerImpl* checker);
+template <typename ThreadLikeObject>
+std::enable_if_t<std::is_base_of_v<SequenceCheckerImpl, ThreadLikeObject>,
+                 std::string>
+ExpectationToString(const ThreadLikeObject* checker) {
+#if RTC_DCHECK_IS_ON
+  return checker->ExpectationToString();
+#else
+  return std::string();
+#endif
+}
 
 // Catch-all implementation for types other than explicitly supported above.
 template <typename ThreadLikeObject>
-std::string ExpectationToString(const ThreadLikeObject*) {
+std::enable_if_t<!std::is_base_of_v<SequenceCheckerImpl, ThreadLikeObject>,
+                 std::string>
+ExpectationToString(const ThreadLikeObject*) {
   return std::string();
 }