diff --git a/src/runtime/composables/useGtag.ts b/src/runtime/composables/useGtag.ts
index 17e2fd1..a5a8f0f 100644
--- a/src/runtime/composables/useGtag.ts
+++ b/src/runtime/composables/useGtag.ts
@@ -60,15 +60,15 @@ export function useGtag() {
       if (!window.dataLayer)
         initGtag({ tags })
 
-      // If the `dataLayer` has more than two items
-      // it is considered to be initialized.
-      if (window.dataLayer!.length > 2)
-        return
-
-      // Inject the Google tag script.
-      useHead({
-        script: [{ src: withQuery(options.url, { id: tag.id }) }],
-      })
+      // Inject the Google tag script if it wasn't injected by the client plugin.
+      if (!document.head.querySelector('script[data-gtag]')) {
+        useHead({
+          script: [{
+            'src': withQuery(options.url, { id: tag.id }),
+            'data-gtag': '',
+          }],
+        })
+      }
     }
   }
 
diff --git a/src/runtime/plugin.client.ts b/src/runtime/plugin.client.ts
index 00fe0b9..00880e3 100644
--- a/src/runtime/plugin.client.ts
+++ b/src/runtime/plugin.client.ts
@@ -24,8 +24,9 @@ export default defineNuxtPlugin({
     useHead({
       script: [
         {
-          src: withQuery(options.url, { id: tags[0].id }),
+          'src': withQuery(options.url, { id: tags[0].id }),
           [strategy]: true,
+          'data-gtag': '',
         },
       ],
     })