diff --git a/src/Satori/SatoriRoutes.php b/src/Satori/SatoriRoutes.php
index ced5519..9156074 100644
--- a/src/Satori/SatoriRoutes.php
+++ b/src/Satori/SatoriRoutes.php
@@ -115,7 +115,7 @@ final class SatoriRoutes implements IRouteHandler {
                 'user_id' => (int)$userInfo->getId(),
                 'username' => $userInfo->getName(),
                 'user_colour' => Colour::toMisuzu($userColour),
-                'is_opening_post' => $postInfo->getId() === $firstPostInfo->getId(),
+                'is_opening_post' => $postInfo->getId() === $firstPostInfo->getId() ? 1 : 0,
             ];
         }