diff --git a/src/content/docs/en/guides/backend/google-firebase.mdx b/src/content/docs/en/guides/backend/google-firebase.mdx
index 3a091262c7257..4509287087200 100644
--- a/src/content/docs/en/guides/backend/google-firebase.mdx
+++ b/src/content/docs/en/guides/backend/google-firebase.mdx
@@ -354,8 +354,8 @@ import Layout from "../layouts/Layout.astro";
 
 /* Check if the user is authenticated */
 const auth = getAuth(app);
-const sessionCookie = Astro.cookies.get("session").value;
-if (sessionCookie) {
+if (Astro.cookies.has("session")) {
+  const sessionCookie = Astro.cookies.get("session").value;
   const decodedCookie = await auth.verifySessionCookie(sessionCookie);
   if (decodedCookie) {
     return Astro.redirect("/dashboard");
@@ -431,11 +431,10 @@ import Layout from "../layouts/Layout.astro";
 const auth = getAuth(app);
 
 /* Check current session */
-const sessionCookie = Astro.cookies.get("session").value;
-
-if (!sessionCookie) {
+if (!Astro.cookies.has("session")) {
   return Astro.redirect("/signin");
 }
+const sessionCookie = Astro.cookies.get("session").value;
 const decodedCookie = await auth.verifySessionCookie(sessionCookie);
 const user = await auth.getUser(decodedCookie.uid);
 
@@ -473,8 +472,8 @@ import Layout from "../layouts/Layout.astro";
 
 /* Check if the user is authenticated */
 const auth = getAuth(app);
-const sessionCookie = Astro.cookies.get("session").value;
-if (sessionCookie) {
+if (Astro.cookies.has("session")) {
+  const sessionCookie = Astro.cookies.get("session").value;
   const decodedCookie = await auth.verifySessionCookie(sessionCookie);
   if (decodedCookie) {
     return Astro.redirect("/dashboard");