diff --git a/packages/server/src/Interface.ts b/packages/server/src/Interface.ts
index c8b981d501..73708439fd 100644
--- a/packages/server/src/Interface.ts
+++ b/packages/server/src/Interface.ts
@@ -288,5 +288,21 @@ export interface ICustomTemplate {
     usecases?: string
 }
 
+export interface INodeOverrides {
+    [key: string]: {
+        label: string
+        name: string
+        type: string
+        enabled: boolean
+    }[]
+}
+
+export interface IVariableOverride {
+    id: string
+    name: string
+    type: 'static' | 'runtime'
+    enabled: boolean
+}
+
 // DocumentStore related
 export * from './Interface.DocumentStore'
diff --git a/packages/server/src/utils/index.ts b/packages/server/src/utils/index.ts
index 9410a1b51b..6072594666 100644
--- a/packages/server/src/utils/index.ts
+++ b/packages/server/src/utils/index.ts
@@ -12,11 +12,13 @@ import {
     INodeData,
     INodeDependencies,
     INodeDirectedGraph,
+    INodeOverrides,
     INodeQueue,
     IOverrideConfig,
     IReactFlowEdge,
     IReactFlowNode,
     IVariableDict,
+    IVariableOverride,
     IncomingInput
 } from '../Interface'
 import { cloneDeep, get, isEqual } from 'lodash'
@@ -436,8 +438,8 @@ type BuildFlowParams = {
     appDataSource: DataSource
     overrideConfig?: ICommonObject
     apiOverrideStatus?: boolean
-    nodeOverrides?: ICommonObject
-    variableOverrides?: ICommonObject[]
+    nodeOverrides?: INodeOverrides
+    variableOverrides?: IVariableOverride[]
     cachePool?: CachePool
     isUpsert?: boolean
     stopNodeId?: string
@@ -1000,15 +1002,15 @@ export const resolveVariables = async (
  * Loop through each inputs and replace their value with override config values
  * @param {INodeData} flowNodeData
  * @param {ICommonObject} overrideConfig
- * @param {ICommonObject} nodeOverrides
- * @param {ICommonObject[]} variableOverrides
+ * @param {INodeOverrides} nodeOverrides
+ * @param {IVariableOverride[]} variableOverrides
  * @returns {INodeData}
  */
 export const replaceInputsWithConfig = (
     flowNodeData: INodeData,
     overrideConfig: ICommonObject,
-    nodeOverrides: ICommonObject,
-    variableOverrides: ICommonObject[]
+    nodeOverrides: INodeOverrides,
+    variableOverrides: IVariableOverride[]
 ) => {
     const types = 'inputs'
 
@@ -1676,9 +1678,12 @@ export const aMonthAgo = () => {
 export const getAPIOverrideConfig = (chatflow: IChatFlow) => {
     try {
         const apiConfig = chatflow.apiConfig ? JSON.parse(chatflow.apiConfig) : {}
-        const nodeOverrides = apiConfig.overrideConfig && apiConfig.overrideConfig.nodes ? apiConfig.overrideConfig.nodes : {}
-        const variableOverrides = apiConfig.overrideConfig && apiConfig.overrideConfig.variables ? apiConfig.overrideConfig.variables : []
-        const apiOverrideStatus = apiConfig.overrideConfig && apiConfig.overrideConfig.status ? apiConfig.overrideConfig.status : false
+        const nodeOverrides: INodeOverrides =
+            apiConfig.overrideConfig && apiConfig.overrideConfig.nodes ? apiConfig.overrideConfig.nodes : {}
+        const variableOverrides: IVariableOverride[] =
+            apiConfig.overrideConfig && apiConfig.overrideConfig.variables ? apiConfig.overrideConfig.variables : []
+        const apiOverrideStatus: boolean =
+            apiConfig.overrideConfig && apiConfig.overrideConfig.status ? apiConfig.overrideConfig.status : false
 
         return { nodeOverrides, variableOverrides, apiOverrideStatus }
     } catch (error) {
diff --git a/packages/server/src/utils/upsertVector.ts b/packages/server/src/utils/upsertVector.ts
index ad01bf5052..4d3cb5858b 100644
--- a/packages/server/src/utils/upsertVector.ts
+++ b/packages/server/src/utils/upsertVector.ts
@@ -159,6 +159,19 @@ export const upsertVector = async (req: Request, isInternal: boolean = false) =>
         /*** Get API Config ***/
         const { nodeOverrides, variableOverrides, apiOverrideStatus } = getAPIOverrideConfig(chatflow)
 
+        // For "files" input, add a new node override with the actual input name such as pdfFile, txtFile, etc.
+        for (const nodeLabel in nodeOverrides) {
+            const params = nodeOverrides[nodeLabel]
+            const enabledFileParam = params.find((param) => param.enabled && param.name === 'files')
+            if (enabledFileParam) {
+                const fileInputFieldFromExt = mapExtToInputField(enabledFileParam.type)
+                nodeOverrides[nodeLabel].push({
+                    ...enabledFileParam,
+                    name: fileInputFieldFromExt
+                })
+            }
+        }
+
         const upsertedResult = await buildFlow({
             startingNodeIds,
             reactFlowNodes: nodes,