diff --git a/packages/backend/src/server/api/common/signup.ts b/packages/backend/src/server/api/common/signup.ts
index 7ae9e10fba..bb178506b7 100644
--- a/packages/backend/src/server/api/common/signup.ts
+++ b/packages/backend/src/server/api/common/signup.ts
@@ -107,6 +107,7 @@ export async function signup(opts: {
 				isAdmin:
 					(await Users.countBy({
 						host: IsNull(),
+						isAdmin: true,
 					})) === 0,
 			}),
 		);
diff --git a/packages/backend/src/server/api/endpoints/admin/accounts/create.ts b/packages/backend/src/server/api/endpoints/admin/accounts/create.ts
index 11ef2273ca..2e035d1695 100644
--- a/packages/backend/src/server/api/endpoints/admin/accounts/create.ts
+++ b/packages/backend/src/server/api/endpoints/admin/accounts/create.ts
@@ -35,6 +35,7 @@ export default define(meta, paramDef, async (ps, _me) => {
 	const noUsers =
 		(await Users.countBy({
 			host: IsNull(),
+			isAdmin: true,
 		})) === 0;
 	if (!(noUsers || me?.isAdmin)) throw new Error("access denied");
 
diff --git a/packages/backend/src/server/api/endpoints/meta.ts b/packages/backend/src/server/api/endpoints/meta.ts
index 005d0800ac..476a0c29f0 100644
--- a/packages/backend/src/server/api/endpoints/meta.ts
+++ b/packages/backend/src/server/api/endpoints/meta.ts
@@ -489,6 +489,7 @@ export default define(meta, paramDef, async (ps, me) => {
 					requireSetup:
 						(await Users.countBy({
 							host: IsNull(),
+							isAdmin: true,
 						})) === 0,
 			  }
 			: {}),