diff --git a/frontend/app/player/MessageDistributor/network/crypto.ts b/frontend/app/player/MessageDistributor/network/crypto.ts
index c6150f6cc..ff50e9704 100644
--- a/frontend/app/player/MessageDistributor/network/crypto.ts
+++ b/frontend/app/player/MessageDistributor/network/crypto.ts
@@ -14,7 +14,7 @@ function truncPadding(padded: Uint8Array): Uint8Array {
 }
 
 export function decryptSessionBytes(cypher: Uint8Array, keyString: string): Promise<Uint8Array> {
-	if (keyString.length !== 16) {
+	if (keyString.length !== 64) {
 		return Promise.reject("Wrong key string format")
 	}
 	const [hexKey, hexIV] = keyString.match(/.{8}/g)