diff --git a/angular/scripts/rollup.config.js b/angular/scripts/rollup.config.js
index 5a27d6fbcf7..33b71393151 100644
--- a/angular/scripts/rollup.config.js
+++ b/angular/scripts/rollup.config.js
@@ -12,7 +12,9 @@ export default {
       return false;
     }
     // anything else is external
-    return !(id.startsWith('.') || id.startsWith('/'));
+    // Windows: C:\xxxxxx\xxx
+    const colonPosition = 1;
+    return !(id.startsWith('.') || id.startsWith('/') || id.charAt(colonPosition) === ':');
   },
   plugins: [
     resolve({