diff --git a/packages/app/src/custom-elements.d.ts b/packages/app/src/custom-elements.d.ts
index e4ea0d6ce..49ec4449f 120000
--- a/packages/app/src/custom-elements.d.ts
+++ b/packages/app/src/custom-elements.d.ts
@@ -1 +1,17 @@
-../../ui/src/custom-elements.d.ts
\ No newline at end of file
+import { DIFFS_TAG_NAME } from "@pierre/diffs"
+
+/**
+ * TypeScript declaration for the <diffs-container> custom element.
+ * This tells TypeScript that <diffs-container> is a valid JSX element in SolidJS.
+ * Required for using the @pierre/diffs web component in .tsx files.
+ */
+
+declare module "solid-js" {
+  namespace JSX {
+    interface IntrinsicElements {
+      [DIFFS_TAG_NAME]: HTMLAttributes<HTMLElement>
+    }
+  }
+}
+
+export {}
diff --git a/packages/enterprise/src/custom-elements.d.ts b/packages/enterprise/src/custom-elements.d.ts
index e4ea0d6ce..49ec4449f 120000
--- a/packages/enterprise/src/custom-elements.d.ts
+++ b/packages/enterprise/src/custom-elements.d.ts
@@ -1 +1,17 @@
-../../ui/src/custom-elements.d.ts
\ No newline at end of file
+import { DIFFS_TAG_NAME } from "@pierre/diffs"
+
+/**
+ * TypeScript declaration for the <diffs-container> custom element.
+ * This tells TypeScript that <diffs-container> is a valid JSX element in SolidJS.
+ * Required for using the @pierre/diffs web component in .tsx files.
+ */
+
+declare module "solid-js" {
+  namespace JSX {
+    interface IntrinsicElements {
+      [DIFFS_TAG_NAME]: HTMLAttributes<HTMLElement>
+    }
+  }
+}
+
+export {}