diff --git a/features/platform-admin/frontend-admin/vite.config.ts b/features/platform-admin/frontend-admin/vite.config.ts
index 43757479b..3622ef60d 100755
--- a/features/platform-admin/frontend-admin/vite.config.ts
+++ b/features/platform-admin/frontend-admin/vite.config.ts
@@ -35,12 +35,19 @@ const attributesUrl = process.env.VITE_ATTRIBUTES_URL || getServiceUrl('attribut
 const imageGeneratorUrl = process.env.VITE_IMAGE_GENERATOR_URL || getServiceUrl('image-generator', 'api');
 const semanticUrl = process.env.VITE_SEMANTIC_URL || getServiceUrl('truth-validation', 'api');
 
-// Rollup plugin to ignore .d.ts imports (fixes broken styled.d.ts in ui-* packages)
+// Plugin to handle .d.ts imports (fixes broken styled.d.ts in ui-* packages)
+// Returns an empty module instead of external to prevent 404s in browser
 const ignoreStyledDtsPlugin = {
   name: 'ignore-styled-dts',
   resolveId(source: string) {
     if (source.endsWith('.d.ts') || source === './styled.d.ts') {
-      return { id: source, external: true };
+      return '\0virtual:empty-dts';
+    }
+    return null;
+  },
+  load(id: string) {
+    if (id === '\0virtual:empty-dts') {
+      return '// Empty module for .d.ts import';
     }
     return null;
   }