diff --git a/src/dependency_injector/providers.c b/src/dependency_injector/providers.c
index 089afe35..7b5e9957 100644
--- a/src/dependency_injector/providers.c
+++ b/src/dependency_injector/providers.c
@@ -35675,7 +35675,7 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_19ConfigurationOption
 
 /* Python wrapper */
 static PyObject *__pyx_pw_19dependency_injector_9providers_19ConfigurationOption_51from_env(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_19dependency_injector_9providers_19ConfigurationOption_50from_env[] = "Load configuration value from the environment variable.\n\n        :param name: Name of the environment variable.\n        :type name: str\n\n        :param default: Default value that is used if environment variable does not exist.\n        :type default: object\n\n        :param required: When required is True, raise an exception if environment variable is undefined.\n        :type required: bool\n\n        :param as_: Type converter (int, float, etc).\n        :type as_: object\n\n        :rtype: None\n        ";
+static char __pyx_doc_19dependency_injector_9providers_19ConfigurationOption_50from_env[] = "Load configuration value from the environment variable.\n\n        :param name: Name of the environment variable.\n        :type name: str\n\n        :param default: Default value that is used if environment variable does not exist.\n        :type default: object\n\n        :param required: When required is True, raise an exception if environment variable is undefined.\n        :type required: bool\n\n        :param as_: Callable used for type casting (int, float, etc).\n        :type as_: object\n\n        :rtype: None\n        ";
 static PyObject *__pyx_pw_19dependency_injector_9providers_19ConfigurationOption_51from_env(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_name = 0;
   PyObject *__pyx_v_default = 0;
@@ -44327,7 +44327,7 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_13Configuration_64fro
 
 /* Python wrapper */
 static PyObject *__pyx_pw_19dependency_injector_9providers_13Configuration_67from_env(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_19dependency_injector_9providers_13Configuration_66from_env[] = "Load configuration value from the environment variable.\n\n        :param name: Name of the environment variable.\n        :type name: str\n\n        :param default: Default value that is used if environment variable does not exist.\n        :type default: object\n\n        :param required: When required is True, raise an exception if environment variable is undefined.\n        :type required: bool\n\n        :param as_: Type converter (int, float, etc).\n        :type as_: object\n\n        :rtype: None\n        ";
+static char __pyx_doc_19dependency_injector_9providers_13Configuration_66from_env[] = "Load configuration value from the environment variable.\n\n        :param name: Name of the environment variable.\n        :type name: str\n\n        :param default: Default value that is used if environment variable does not exist.\n        :type default: object\n\n        :param required: When required is True, raise an exception if environment variable is undefined.\n        :type required: bool\n\n        :param as_: Callable used for type casting (int, float, etc).\n        :type as_: object\n\n        :rtype: None\n        ";
 static PyObject *__pyx_pw_19dependency_injector_9providers_13Configuration_67from_env(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_name = 0;
   PyObject *__pyx_v_default = 0;
diff --git a/src/dependency_injector/providers.pyx b/src/dependency_injector/providers.pyx
index 5bfbf56c..943995ad 100644
--- a/src/dependency_injector/providers.pyx
+++ b/src/dependency_injector/providers.pyx
@@ -1701,7 +1701,7 @@ cdef class ConfigurationOption(Provider):
         :param required: When required is True, raise an exception if environment variable is undefined.
         :type required: bool
 
-        :param as_: Type converter (int, float, etc).
+        :param as_: Callable used for type casting (int, float, etc).
         :type as_: object
 
         :rtype: None
@@ -2209,7 +2209,7 @@ cdef class Configuration(Object):
         :param required: When required is True, raise an exception if environment variable is undefined.
         :type required: bool
 
-        :param as_: Type converter (int, float, etc).
+        :param as_: Callable used for type casting (int, float, etc).
         :type as_: object
 
         :rtype: None