diff --git a/packages/build/src/extensions/prisma.ts b/packages/build/src/extensions/prisma.ts
index b67adc7efc..e3e17c4c7b 100644
--- a/packages/build/src/extensions/prisma.ts
+++ b/packages/build/src/extensions/prisma.ts
@@ -186,7 +186,7 @@ export class PrismaExtension implements BuildExtension {
       commands.push(
         `${binaryForRuntime(
           manifest.runtime
-        )} node_modules/prisma/build/index.js generate ${generatorFlags.join(" ")}` // Don't add the --schema flag or this will fail
+        )} node_modules/prisma/build/index.js generate --schema=./prisma/${usingSchemaFolder ? "schema/schema.prisma" : "schema.prisma"} ${generatorFlags.join(" ")}`
       );
     } else {
       prismaDir = dirname(this._resolvedSchemaPath);