diff --git a/packages/components/nodes/agents/CSVAgent/CSVAgent.ts b/packages/components/nodes/agents/CSVAgent/CSVAgent.ts
index 428b02e23..e9f2c7268 100644
--- a/packages/components/nodes/agents/CSVAgent/CSVAgent.ts
+++ b/packages/components/nodes/agents/CSVAgent/CSVAgent.ts
@@ -100,7 +100,7 @@ class CSV_Agents implements INode {
         for (const file of files) {
             const splitDataURI = file.split(',')
             splitDataURI.pop()
-            base64String = splitDataURI.pop() ?? ''
+            base64String += splitDataURI.pop() ?? ''
         }
 
         const pyodide = await LoadPyodide()