diff --git a/.changeset/twelve-cars-guess.md b/.changeset/twelve-cars-guess.md
new file mode 100644
index 0000000000..76649909b2
--- /dev/null
+++ b/.changeset/twelve-cars-guess.md
@@ -0,0 +1,5 @@
+---
+"create-t3-app": minor
+---
+
+feat(prisma): support correct typings when using `.extends()`
diff --git a/cli/template/extras/src/server/db/db-prisma-planetscale.ts b/cli/template/extras/src/server/db/db-prisma-planetscale.ts
index dbb9c2ed32..52188938cc 100644
--- a/cli/template/extras/src/server/db/db-prisma-planetscale.ts
+++ b/cli/template/extras/src/server/db/db-prisma-planetscale.ts
@@ -2,20 +2,21 @@ import { Client } from "@planetscale/database";
 import { PrismaPlanetScale } from "@prisma/adapter-planetscale";
 import { PrismaClient } from "@prisma/client";
 
-import { env } from "~/env.js";
+import { env } from "~/env";
 
-const globalForPrisma = globalThis as unknown as {
-  prisma: PrismaClient | undefined;
-};
+const psClient = new Client({ url: env.DATABASE_URL });
 
-const client = new Client({ url: env.DATABASE_URL });
-
-export const db =
-  globalForPrisma.prisma ??
+const createPrismaClient = () =>
   new PrismaClient({
     log:
       env.NODE_ENV === "development" ? ["query", "error", "warn"] : ["error"],
-    adapter: new PrismaPlanetScale(client),
+    adapter: new PrismaPlanetScale(psClient),
   });
 
+const globalForPrisma = globalThis as unknown as {
+  prisma: ReturnType<typeof createPrismaClient> | undefined;
+};
+
+export const db = globalForPrisma.prisma ?? createPrismaClient();
+
 if (env.NODE_ENV !== "production") globalForPrisma.prisma = db;
diff --git a/cli/template/extras/src/server/db/db-prisma.ts b/cli/template/extras/src/server/db/db-prisma.ts
index 02696bcc31..07dc0271a5 100644
--- a/cli/template/extras/src/server/db/db-prisma.ts
+++ b/cli/template/extras/src/server/db/db-prisma.ts
@@ -2,15 +2,16 @@ import { PrismaClient } from "@prisma/client";
 
 import { env } from "~/env";
 
-const globalForPrisma = globalThis as unknown as {
-  prisma: PrismaClient | undefined;
-};
-
-export const db =
-  globalForPrisma.prisma ??
+const createPrismaClient = () =>
   new PrismaClient({
     log:
       env.NODE_ENV === "development" ? ["query", "error", "warn"] : ["error"],
   });
 
+const globalForPrisma = globalThis as unknown as {
+  prisma: ReturnType<typeof createPrismaClient> | undefined;
+};
+
+export const db = globalForPrisma.prisma ?? createPrismaClient();
+
 if (env.NODE_ENV !== "production") globalForPrisma.prisma = db;