diff --git a/.changeset/warm-bobcats-prove.md b/.changeset/warm-bobcats-prove.md
new file mode 100644
index 0000000000..b79bbf85d0
--- /dev/null
+++ b/.changeset/warm-bobcats-prove.md
@@ -0,0 +1,6 @@
+---
+"@medusajs/medusa": patch
+"integration-tests-http": patch
+---
+
+fix(medusa): cart now returns 404 when not found
diff --git a/integration-tests/http/__tests__/cart/store/cart.spec.ts b/integration-tests/http/__tests__/cart/store/cart.spec.ts
index fe8f731a76..d690546102 100644
--- a/integration-tests/http/__tests__/cart/store/cart.spec.ts
+++ b/integration-tests/http/__tests__/cart/store/cart.spec.ts
@@ -9,11 +9,7 @@ import {
   PromotionStatus,
   PromotionType,
 } from "@medusajs/utils"
-import {
-  createAdminUser,
-  generatePublishableKey,
-  generateStoreHeaders,
-} from "../../../../helpers/create-admin-user"
+import { createAdminUser, generatePublishableKey, generateStoreHeaders, } from "../../../../helpers/create-admin-user"
 import { setupTaxStructure } from "../../../../modules/__tests__/fixtures"
 import { createAuthenticatedCustomer } from "../../../../modules/helpers/create-authenticated-customer"
 import { medusaTshirtProduct } from "../../../__fixtures__/product"
@@ -152,6 +148,17 @@ medusaIntegrationTestRunner({
         ).data.promotion
       })
 
+      describe("GET /store/carts/[id]", () => {
+        it("should return 404 when trying to fetch a cart that does not exist", async () => {
+          const response = await api.get(
+            `/store/carts/fake`,
+            storeHeadersWithCustomer
+          ).catch((e) => e)
+
+          expect(response.response.status).toEqual(404)
+        })
+      })
+
       describe("POST /store/carts", () => {
         it("should successfully create a cart", async () => {
           const response = await api.post(
diff --git a/packages/medusa/src/api/store/carts/helpers.ts b/packages/medusa/src/api/store/carts/helpers.ts
index 6a237d2680..25311acc6c 100644
--- a/packages/medusa/src/api/store/carts/helpers.ts
+++ b/packages/medusa/src/api/store/carts/helpers.ts
@@ -1,6 +1,7 @@
 import { MedusaContainer } from "@medusajs/framework/types"
 import {
   ContainerRegistrationKeys,
+  MedusaError,
   remoteQueryObjectFromString,
 } from "@medusajs/framework/utils"
 
@@ -18,5 +19,12 @@ export const refetchCart = async (
 
   const [cart] = await remoteQuery(queryObject)
 
+  if (!cart) {
+    throw new MedusaError(
+      MedusaError.Types.NOT_FOUND,
+      `Cart with id '${id}' not found`
+    )
+  }
+
   return cart
 }