diff --git a/package.json b/package.json
index ce97731..7986d0d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "juneojs",
-  "version": "0.0.127",
+  "version": "0.0.128",
   "description": "Juneo JS Library",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
diff --git a/src/transaction/signature.ts b/src/transaction/signature.ts
index 56cc9c9..60aeb05 100644
--- a/src/transaction/signature.ts
+++ b/src/transaction/signature.ts
@@ -94,7 +94,9 @@ export class SignedTransaction {
 
   constructor (unsignedTransaction: UnsignedTransaction, signatures: Signature[]) {
     this.unsignedTransaction = unsignedTransaction
-    this.buildCredentials(signatures)
+    if (signatures.length > 0) {
+      this.buildCredentials(signatures)
+    }
   }
 
   getTransactionId (): string {