diff --git a/cantok/tokens/condition_token.py b/cantok/tokens/condition_token.py
index d99e8cb..38f5d24 100644
--- a/cantok/tokens/condition_token.py
+++ b/cantok/tokens/condition_token.py
@@ -57,12 +57,16 @@ def run_function(self) -> bool:
         return result
 
     def text_representation_of_superpower(self) -> str:
-        result = self.function.__name__
+        if hasattr(self.function, '__name__'):
+            result = self.function.__name__
 
-        if result == '<lambda>':
-            return 'λ'
+            if result == '<lambda>':
+                return 'λ'
 
-        return result
+            return result
+
+        else:
+            return repr(self.function)
 
     def get_extra_kwargs(self) -> Dict[str, Any]:
         result = {}
diff --git a/pyproject.toml b/pyproject.toml
index 6d39b25..ca2affd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "cantok"
-version = "0.0.29"
+version = "0.0.30"
 authors = [
   { name="Evgeniy Blinov", email="zheni-b@yandex.ru" },
 ]
diff --git a/tests/units/tokens/test_condition_token.py b/tests/units/tokens/test_condition_token.py
index 2a4fb6a..e6c95ae 100644
--- a/tests/units/tokens/test_condition_token.py
+++ b/tests/units/tokens/test_condition_token.py
@@ -461,3 +461,17 @@ def function(): return False
     assert repr(ConditionToken(function, suppress_exceptions=False, default=True)) == 'ConditionToken(function, suppress_exceptions=False, default=True)'
 
     assert repr(ConditionToken(function, suppress_exceptions=False, default=True, cancelled=True)) == 'ConditionToken(function, cancelled=True, suppress_exceptions=False, default=True)'
+
+
+def test_repr_for_class_based_function():
+    class SomeChecker:
+        def __call__(self) -> bool:
+            return True
+
+        def __str__(self) -> str:
+            return 'str_string'
+
+        def __repr__(self) -> str:
+            return 'repr_string'
+
+    assert repr(ConditionToken(SomeChecker())) == 'ConditionToken(repr_string)'