diff --git a/lib/parse-styles.js b/lib/parse-styles.js
index 1526f974..c86441a9 100644
--- a/lib/parse-styles.js
+++ b/lib/parse-styles.js
@@ -97,6 +97,12 @@ async function resolveImportId(result, stmt, options, state, postcss) {
     // and the current statement doesn't have a data url
     // we set the conditions to `not all`.
     stmt.media = ["not all"]
+    result.warn(
+      `Unable to import '${stmt.uri}' from a stylesheet embedded in a data url`,
+      {
+        node: stmt.node,
+      }
+    )
     return
   }
 
diff --git a/test/data-url.js b/test/data-url.js
index 13af7d8d..bc3334a2 100644
--- a/test/data-url.js
+++ b/test/data-url.js
@@ -5,4 +5,6 @@ const test = require("ava")
 // internal tooling
 const checkFixture = require("./helpers/check-fixture")
 
-test("should inline data urls", checkFixture, "data-url")
+test("should inline data urls", checkFixture, "data-url", null, null, [
+  `Unable to import 'foo.css' from a stylesheet embedded in a data url`,
+])