diff --git a/apps/server/src/share/routes.ts b/apps/server/src/share/routes.ts
index 6494f099a7..69489c5522 100644
--- a/apps/server/src/share/routes.ts
+++ b/apps/server/src/share/routes.ts
@@ -1,6 +1,6 @@
 import safeCompare from "safe-compare";
 
-import type { Request, Response, Router } from "express";
+import type { NextFunction, Request, Response, Router } from "express";
 
 import shaca from "./shaca/shaca.js";
 import shacaLoader from "./shaca/shaca_loader.js";
@@ -12,13 +12,15 @@ import { getDefaultTemplatePath, renderNoteContent } from "./content_renderer.js
 import utils from "../services/utils.js";
 import { isShareDbReady } from "./sql.js";
 
-function assertShareDbReady(res: Response): boolean {
+function assertShareDbReady(_req: Request, res: Response, next: NextFunction) {
     if (!isShareDbReady()) {
         res.status(503).send("The application is still initializing. Please try again in a moment.");
-        return false;
+        return;
     }
-    return true;
+
+    next();
 }
+
 function addNoIndexHeader(note: SNote, res: Response) {
     if (note.isLabelTruthy("shareDisallowRobotIndexing")) {
         res.setHeader("X-Robots-Tag", "noindex");
@@ -124,12 +126,7 @@ function render404(res: Response) {
 
 function register(router: Router) {
     // Guard: if the share DB is not yet initialized, return 503 for all /share routes.
-    router.use((_req: Request, res: Response, next) => {
-        if (!assertShareDbReady(res)) {
-            return;
-        }
-        next();
-    });
+    router.use("/share", assertShareDbReady);
 
     function renderNote(note: SNote, req: Request, res: Response) {
         if (!note) {