diff --git a/javascript/src/utilities/signingUtilities.js b/javascript/src/utilities/signingUtilities.js
index 9e6e12eed2664f10a1dc15209233ff8730ae266c..b5c5d38ba26e78e92b46bb0a9d4da690ea088372 100644
--- a/javascript/src/utilities/signingUtilities.js
+++ b/javascript/src/utilities/signingUtilities.js
@@ -736,7 +736,7 @@ function createCertificate(certData, issuerData = null) {
         //endregion "AuthorityKeyIdentifier" extension
     */
     //endregion Extensions
-  });
+  },error => Promise.reject(`Error calculating hash of public key: ${error}`));
   //region Fill in cert data
 
   //region Signing final certificate