diff --git a/src/openrpc/device.json b/src/openrpc/device.json
index dc0031397..04cdced4d 100644
--- a/src/openrpc/device.json
+++ b/src/openrpc/device.json
@@ -316,7 +316,6 @@
             }
           },
           "required": [
-            "sdk",
             "api",
             "firmware",
             "os"