diff --git a/javascript/src/utilities/signingUtilities.js b/javascript/src/utilities/signingUtilities.js
index 3fad4cbc4c74e05a39c3eb93f39a5c16ec5d406e..45c41446ea72a64e18a704e66a0efd7bee7399c7 100644
--- a/javascript/src/utilities/signingUtilities.js
+++ b/javascript/src/utilities/signingUtilities.js
@@ -923,7 +923,7 @@ export function createOneTimePassportCertificate(
   certicateIssuerArg
 ) {
   let certData = null;
-  if (emailArg != null && emailArg == "") {
+  if (emailArg !== null && emailArg === "") {
     emailArg = null;
   }