diff --git a/packages/gatsby-source-shopify/src/gatsby-node.ts b/packages/gatsby-source-shopify/src/gatsby-node.ts
index 789c22001dae6..223f51b023d8b 100644
--- a/packages/gatsby-source-shopify/src/gatsby-node.ts
+++ b/packages/gatsby-source-shopify/src/gatsby-node.ts
@@ -43,7 +43,7 @@ export function pluginOptionsSchema({
       .default([])
       .items(Joi.string().valid(`orders`, `collections`)),
     salesChannel: Joi.string().default(
-      process.env.GATSBY_SHOPIFY_SALES_CHANNEL
+      process.env.GATSBY_SHOPIFY_SALES_CHANNEL || ``
     ),
   })
 }