diff --git a/packages/bruno-electron/src/ipc/network/interpolate-vars.js b/packages/bruno-electron/src/ipc/network/interpolate-vars.js
index 2b46327af..0b8e300ed 100644
--- a/packages/bruno-electron/src/ipc/network/interpolate-vars.js
+++ b/packages/bruno-electron/src/ipc/network/interpolate-vars.js
@@ -65,7 +65,11 @@ const interpolateVars = (request, envVariables = {}, runtimeVariables = {}, proc
 
   const contentType = getContentType(request.headers);
 
-  if (contentType.includes('json')) {
+  /*
+    We explicitly avoid interpolating buffer values because the file content is read as a buffer object in raw body mode. 
+    Even if the selected file's content type is JSON, this prevents the buffer object from being interpolated.
+  */
+  if (contentType.includes('json') && !Buffer.isBuffer(request.data)) {
     if (typeof request.data === 'string') {
       if (request.data.length) {
         request.data = _interpolate(request.data);