diff --git a/web/app/components/workflow/nodes/_base/components/variable/utils.ts b/web/app/components/workflow/nodes/_base/components/variable/utils.ts
index 6e6c85dc89..1c26ef360f 100644
--- a/web/app/components/workflow/nodes/_base/components/variable/utils.ts
+++ b/web/app/components/workflow/nodes/_base/components/variable/utils.ts
@@ -527,7 +527,7 @@ const formatItem = (
     const isCurrentMatched = filterVar(v, (() => {
       const variableArr = v.variable.split('.')
       const [first] = variableArr
-      if (first === 'sys' || first === 'env' || first === 'conversation')
+      if (first === 'sys' || first === 'env' || first === 'conversation' || first === 'rag')
         return variableArr
 
       return [...selector, ...variableArr]
diff --git a/web/app/components/workflow/nodes/_base/components/variable/var-reference-vars.tsx b/web/app/components/workflow/nodes/_base/components/variable/var-reference-vars.tsx
index 731a4bff1f..c006ebe52f 100644
--- a/web/app/components/workflow/nodes/_base/components/variable/var-reference-vars.tsx
+++ b/web/app/components/workflow/nodes/_base/components/variable/var-reference-vars.tsx
@@ -286,7 +286,7 @@ const VarReferenceVars: FC<Props> = ({
   }
 
   const filteredVars = vars.filter((v) => {
-    const children = v.vars.filter(v => checkKeys([v.variable], false).isValid || v.variable.startsWith('sys.') || v.variable.startsWith('env.') || v.variable.startsWith('conversation.'))
+    const children = v.vars.filter(v => checkKeys([v.variable], false).isValid || v.variable.startsWith('sys.') || v.variable.startsWith('env.') || v.variable.startsWith('conversation.') || v.variable.startsWith('rag.'))
     return children.length > 0
   }).filter((node) => {
     if (!searchText)
@@ -297,7 +297,7 @@ const VarReferenceVars: FC<Props> = ({
     })
     return children.length > 0
   }).map((node) => {
-    let vars = node.vars.filter(v => checkKeys([v.variable], false).isValid || v.variable.startsWith('sys.') || v.variable.startsWith('env.') || v.variable.startsWith('conversation.'))
+    let vars = node.vars.filter(v => checkKeys([v.variable], false).isValid || v.variable.startsWith('sys.') || v.variable.startsWith('env.') || v.variable.startsWith('conversation.') || v.variable.startsWith('rag.'))
     if (searchText) {
       const searchTextLower = searchText.toLowerCase()
       if (!node.title.toLowerCase().includes(searchTextLower))