diff --git a/unittests/failuretests.py b/unittests/failuretests.py
index a966a0ac4c1f..42ee9ed97a10 100644
--- a/unittests/failuretests.py
+++ b/unittests/failuretests.py
@@ -248,8 +248,8 @@ def test_objc_detection(self) -> None:
         env = get_fake_env()
         try:
             detect_objc_compiler(env, MachineChoice.HOST)
-        except EnvironmentException:
-            self.assertMesonRaises("add_languages('objc')", r"(Unknown compiler|GCC was not built with support)")
+        except EnvironmentException as e:
+            self.assertRegex(str(e), r"(Unknown compiler|GCC was not built with support)")
         else:
             raise unittest.SkipTest('Working objective-c Compiler found, cannot test error.')
 
@@ -257,8 +257,8 @@ def test_objcpp_detection(self) -> None:
         env = get_fake_env()
         try:
             detect_objcpp_compiler(env, MachineChoice.HOST)
-        except EnvironmentException:
-            self.assertMesonRaises("add_languages('objcpp')", r"(Unknown compiler|GCC was not built with support)")
+        except EnvironmentException as e:
+            self.assertRegex(str(e), r"(Unknown compiler|GCC was not built with support)")
         else:
             raise unittest.SkipTest('Working objective-c++ Compiler found, cannot test error.')