diff --git a/glib/gtestutils.h b/glib/gtestutils.h
index 298caa403..10b65c164 100644
--- a/glib/gtestutils.h
+++ b/glib/gtestutils.h
@@ -467,7 +467,7 @@ void    g_assertion_message             (const char     *domain,
                                          const char     *file,
                                          int             line,
                                          const char     *func,
-                                         const char     *message);
+                                         const char     *message) G_ANALYZER_NORETURN;
 GLIB_AVAILABLE_IN_ALL
 void    g_assertion_message_expr        (const char     *domain,
                                          const char     *file,
@@ -482,7 +482,7 @@ void    g_assertion_message_cmpstr      (const char     *domain,
                                          const char     *expr,
                                          const char     *arg1,
                                          const char     *cmp,
-                                         const char     *arg2);
+                                         const char     *arg2) G_ANALYZER_NORETURN;
 GLIB_AVAILABLE_IN_ALL
 void    g_assertion_message_cmpnum      (const char     *domain,
                                          const char     *file,
@@ -492,7 +492,7 @@ void    g_assertion_message_cmpnum      (const char     *domain,
                                          long double     arg1,
                                          const char     *cmp,
                                          long double     arg2,
-                                         char            numtype);
+                                         char            numtype) G_ANALYZER_NORETURN;
 GLIB_AVAILABLE_IN_ALL
 void    g_assertion_message_error       (const char     *domain,
                                          const char     *file,
@@ -501,7 +501,7 @@ void    g_assertion_message_error       (const char     *domain,
                                          const char     *expr,
                                          const GError   *error,
                                          GQuark          error_domain,
-                                         int             error_code);
+                                         int             error_code) G_ANALYZER_NORETURN;
 GLIB_AVAILABLE_IN_ALL
 void    g_test_add_vtable               (const char     *testpath,
                                          gsize           data_size,