diff --git a/apps/circuit-compiler/src/app/actions/index.ts b/apps/circuit-compiler/src/app/actions/index.ts
index d5c55b2a610..ad6f519fcd1 100644
--- a/apps/circuit-compiler/src/app/actions/index.ts
+++ b/apps/circuit-compiler/src/app/actions/index.ts
@@ -169,7 +169,7 @@ function trackEvent(plugin, eventCategory, action, label) {
 }
 
 async function readFileAsUint8Array(plugin: CircomPluginClient, path: string): Promise<Uint8Array> {
-  const data = await plugin.call('fileManager', 'readFile', path, { encoding: null })
+  const data = await plugin.call('fileManager', 'readFile', path)
   return new Uint8Array(data.split(',').map(byte => parseInt(byte, 10)))
 }