diff --git a/lib/addStyles.js b/lib/addStyles.js
index 3f443a4b..077a368f 100644
--- a/lib/addStyles.js
+++ b/lib/addStyles.js
@@ -209,7 +209,7 @@ function createStyleElement (options) {
 	}
 
 	if(options.attrs.nonce === undefined) {
-		const nonce = getNonce();
+		var nonce = getNonce();
 		if (nonce) {
 			options.attrs.nonce = nonce;
 		}