diff --git a/CHANGELOG.md b/CHANGELOG.md
index d7ac99f..ca311cc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,12 @@
 Changelog
 =========
 
+3.4.1
+-----
+- Fix `dsv` decorator to work with `DSVError`.
+- Fix dsv_feature `spec_name` should not show empty value.
+
+
 3.4.0
 -----
 
diff --git a/data_spec_validator/__version__.py b/data_spec_validator/__version__.py
index f631007..da4564d 100644
--- a/data_spec_validator/__version__.py
+++ b/data_spec_validator/__version__.py
@@ -1 +1 @@
-__version__ = '3.4.0'
+__version__ = '3.4.1'
diff --git a/data_spec_validator/decorator/decorators.py b/data_spec_validator/decorator/decorators.py
index 45ce6ae..25d5446 100644
--- a/data_spec_validator/decorator/decorators.py
+++ b/data_spec_validator/decorator/decorators.py
@@ -165,7 +165,7 @@ def _get_error_response(error, use_drf):
     Return the error response based on the error type.
     If the attribute use_drf is True, Raise DRF's exception to let DRF's exception handler do something about it.
     """
-    error_msg = {'messages': error.message}
+    error_msg = {'messages': [str(err) for err in error.message]}
 
     if use_drf:
         err_map = {
diff --git a/data_spec_validator/spec/features.py b/data_spec_validator/spec/features.py
index 80524a7..422cb70 100644
--- a/data_spec_validator/spec/features.py
+++ b/data_spec_validator/spec/features.py
@@ -61,7 +61,9 @@ def wrap(cls: Type) -> Type:
 
 
 def get_spec_name(spec) -> str:
-    return getattr(spec, _FEAT_PARAMS).spec_name if hasattr(spec, _FEAT_PARAMS) else spec.__name__
+    if hasattr(spec, _FEAT_PARAMS) and getattr(spec, _FEAT_PARAMS).spec_name:
+        return getattr(spec, _FEAT_PARAMS).spec_name
+    return spec.__name__
 
 
 def get_err_mode(spec) -> ErrorMode:
diff --git a/test/test_decorator_dj.py b/test/test_decorator_dj.py
index e82d5e3..3ec5914 100644
--- a/test/test_decorator_dj.py
+++ b/test/test_decorator_dj.py
@@ -7,7 +7,7 @@
 
 from data_spec_validator.decorator import dsv, dsv_request_meta
 from data_spec_validator.decorator.decorators import ParseError
-from data_spec_validator.spec import DIGIT_STR, LIST_OF, ONE_OF, STR, Checker, dsv_feature
+from data_spec_validator.spec import DIGIT_STR, LIST_OF, ONE_OF, STR, Checker, ErrorMode, dsv_feature
 
 from .utils import is_django_installed, make_request
 
@@ -223,6 +223,7 @@ def decorated_func(self, request, field_a):
 
     def test_json_response_content(self):
         # arrange
+        @dsv_feature(err_mode=ErrorMode.ALL)
         class _ViewSpec:
             named_arg = Checker([DIGIT_STR])
 
diff --git a/test/test_decorator_drf.py b/test/test_decorator_drf.py
index c813328..92f05f5 100644
--- a/test/test_decorator_drf.py
+++ b/test/test_decorator_drf.py
@@ -5,7 +5,7 @@
 from parameterized import parameterized
 
 from data_spec_validator.decorator import dsv, dsv_request_meta
-from data_spec_validator.spec import DIGIT_STR, LIST_OF, ONE_OF, STR, Checker, dsv_feature
+from data_spec_validator.spec import DIGIT_STR, LIST_OF, ONE_OF, STR, Checker, ErrorMode, dsv_feature
 
 from .utils import is_drf_installed, make_request
 
@@ -178,6 +178,7 @@ def decorated_func(self, request, field_a):
 
     def test_json_response_content(self):
         # arrange
+        @dsv_feature(err_mode=ErrorMode.ALL)
         class _ViewSpec:
             field_a = Checker([DIGIT_STR])