diff --git a/lib/hx509/hx509_err.et b/lib/hx509/hx509_err.et
index c1dfaf587..90dce6754 100644
--- a/lib/hx509/hx509_err.et
+++ b/lib/hx509/hx509_err.et
@@ -86,6 +86,7 @@ error_code PARSING_KEY_FAILED, "Failed to parse key"
 error_code UNSUPPORTED_OPERATION, "Unsupported operation"
 error_code UNIMPLEMENTED_OPERATION, "Unimplemented operation"
 error_code PARSING_NAME_FAILED, "Failed to parse name"
+error_code NO_STORE, "Keystore doesnt support the store operation"
 
 # keystore related error
 index 128