diff --git a/src/helpers/umami.ts b/src/helpers/umami.ts
index afeb6fa8..4c689f1c 100644
--- a/src/helpers/umami.ts
+++ b/src/helpers/umami.ts
@@ -1,7 +1,8 @@
 const UMAMI_SCRIPT_URL = process.env.GATSBY_UMAMI_SCRIPT_URL
 const UMAMI_WEBSITE_ID = process.env.GATSBY_UMAMI_WEBSITE_ID
+const isProduction = process.env.NODE_ENV === 'production'
 
-if (!UMAMI_SCRIPT_URL || !UMAMI_WEBSITE_ID) {
+if (isProduction && (!UMAMI_SCRIPT_URL || !UMAMI_WEBSITE_ID)) {
   throw new Error('Missing Umami environment variables')
 }