diff --git a/src/helpers/coolParameters.js b/src/helpers/coolParameters.js
index 41a1a565d4..3dbbf0cb27 100644
--- a/src/helpers/coolParameters.js
+++ b/src/helpers/coolParameters.js
@@ -158,7 +158,7 @@ const generateCSSVarTokens = () => {
 	darkElement.remove()
 	const customLogo = loadState('richdocuments', 'theming-customLogo', false)
 	if (customLogo) {
-		str += ';--nc-custom-logo=' + window.OCA?.Theming?.cacheBuster ?? 0 + ';'
+		str += `--nc-custom-logo=${window.OCA?.Theming?.cacheBuster ?? 0};`
 	}
 
 	const rootEl = document.querySelector(':root')