diff --git a/administrator/components/com_config/model/form/application.xml b/administrator/components/com_config/model/form/application.xml
index 6c6cc0a685da2..1fdd437852214 100644
--- a/administrator/components/com_config/model/form/application.xml
+++ b/administrator/components/com_config/model/form/application.xml
@@ -160,7 +160,7 @@
 			label="COM_CONFIG_FIELD_REDIS_PORT_LABEL"
 			description="COM_CONFIG_FIELD_REDIS_PORT_DESC"
 			showon="cache_handler:redis"
-			min="1"
+			min="0"
 			max="65535"
 			default="6379"
 			filter="integer"
@@ -994,7 +994,7 @@
 			label="COM_CONFIG_FIELD_REDIS_PORT_LABEL"
 			description="COM_CONFIG_FIELD_REDIS_PORT_DESC"
 			showon="session_handler:redis"
-			min="1"
+			min="0"
 			max="65535"
 			default="6379"
 			validate="number"