diff --git a/test/core/end2end/end2end_tests.h b/test/core/end2end/end2end_tests.h
index b42d90b55cf..33943a72718 100644
--- a/test/core/end2end/end2end_tests.h
+++ b/test/core/end2end/end2end_tests.h
@@ -21,6 +21,10 @@
 
 #include <grpc/grpc.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef struct grpc_end2end_test_fixture grpc_end2end_test_fixture;
 typedef struct grpc_end2end_test_config grpc_end2end_test_config;
 
@@ -74,4 +78,8 @@ const grpc_slice* get_host_override_slice(const char* str,
 void validate_host_override_string(const char* pattern, grpc_slice str,
                                    grpc_end2end_test_config config);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* GRPC_TEST_CORE_END2END_END2END_TESTS_H */