diff --git a/arch/um/include/shared/skas/stub-data.h b/arch/um/include/shared/skas/stub-data.h
index c261a77a32f6..27db38e95df9 100644
--- a/arch/um/include/shared/skas/stub-data.h
+++ b/arch/um/include/shared/skas/stub-data.h
@@ -53,8 +53,7 @@ struct stub_syscall {
 };
 
 struct stub_data {
-	unsigned long offset;
-	long err, child_err;
+	long err;
 
 	int syscall_data_len;
 	/* 128 leaves enough room for additional fields in the struct */