diff --git a/apps/assets/api/account/account.py b/apps/assets/api/account/account.py
index bb60fdfd9..4b26c042d 100644
--- a/apps/assets/api/account/account.py
+++ b/apps/assets/api/account/account.py
@@ -18,8 +18,8 @@ __all__ = ['AccountViewSet', 'AccountSecretsViewSet', 'AccountTaskCreateAPI']
 
 class AccountViewSet(OrgBulkModelViewSet):
     model = Account
-    filterset_fields = ("username", "asset", 'address', 'name')
-    search_fields = ('username', 'address', 'name')
+    filterset_fields = ("username", "asset", 'name')
+    search_fields = ('username', 'asset__address', 'name')
     filterset_class = AccountFilterSet
     serializer_classes = {
         'default': serializers.AccountSerializer,
diff --git a/apps/assets/filters.py b/apps/assets/filters.py
index e44378ef7..76aa648ce 100644
--- a/apps/assets/filters.py
+++ b/apps/assets/filters.py
@@ -161,6 +161,7 @@ class AccountFilterSet(BaseFilterSet):
     ip = filters.CharFilter(field_name='address', lookup_expr='exact')
     hostname = filters.CharFilter(field_name='name', lookup_expr='exact')
     username = filters.CharFilter(field_name="username", lookup_expr='exact')
+    address = filters.CharFilter(field_name="asset__address", lookup_expr='exact')
     assets = UUIDInFilter(field_name='asset_id', lookup_expr='in')
     nodes = UUIDInFilter(method='filter_nodes')
 
diff --git a/apps/assets/serializers/platform.py b/apps/assets/serializers/platform.py
index b1e6820cd..f5fe60376 100644
--- a/apps/assets/serializers/platform.py
+++ b/apps/assets/serializers/platform.py
@@ -6,7 +6,6 @@ from common.drf.serializers import JMSWritableNestedModelSerializer
 from ..models import Platform, PlatformProtocol, PlatformAutomation
 from ..const import Category, AllTypes
 
-
 __all__ = ['PlatformSerializer', 'PlatformOpsMethodSerializer']
 
 
@@ -27,9 +26,9 @@ class ProtocolSettingSerializer(serializers.Serializer):
 
     # HTTP
     auto_fill = serializers.BooleanField(default=False, label=_("Auto fill"))
-    username_selector = serializers.CharField(default='', label=_("Username selector"))
-    password_selector = serializers.CharField(default='', label=_("Password selector"))
-    submit_selector = serializers.CharField(default='', label=_("Submit selector"))
+    username_selector = serializers.CharField(default='', allow_blank=True, label=_("Username selector"))
+    password_selector = serializers.CharField(default='', allow_blank=True, label=_("Password selector"))
+    submit_selector = serializers.CharField(default='', allow_blank=True, label=_("Submit selector"))
 
 
 class PlatformAutomationSerializer(serializers.ModelSerializer):