diff --git a/apps/api/src/orders/order-repository.ts b/apps/api/src/orders/order-repository.ts
index 5a904e1..20bc84c 100644
--- a/apps/api/src/orders/order-repository.ts
+++ b/apps/api/src/orders/order-repository.ts
@@ -39,9 +39,9 @@ export async function listOrderSummaries(context: DatabaseContext, query?: strin
 
   const filters = search
     ? or(
-        sql`instr(${orders.orderNumber}, ${search}) > 0`,
-        sql`instr(${users.name}, ${search}) > 0`,
-        sql`instr(${users.email}, ${search}) > 0`
+        sql`instr(lower(${orders.orderNumber}), lower(${search})) > 0`,
+        sql`instr(lower(${users.name}), lower(${search})) > 0`,
+        sql`instr(lower(${users.email}), lower(${search})) > 0`
       )
     : undefined;
 
diff --git a/apps/api/src/orders/order-search-assignment-1.test.ts b/apps/api/src/orders/order-search-assignment-1.test.ts
index b3724f5..49cad2f 100644
--- a/apps/api/src/orders/order-search-assignment-1.test.ts
+++ b/apps/api/src/orders/order-search-assignment-1.test.ts
@@ -7,7 +7,7 @@ let app: AppWithContext;
 let employeeCookie = "";
 
 function firstHeader(value: string | string[] | undefined) {
-  return Array.isArray(value) ? value[0] : value ?? "";
+  return Array.isArray(value) ? (value[0] ?? "") : value ?? "";
 }
 
 async function login(username: string) {