1 files changed, 1 insertions, 1 deletions

diff --git a/fs/9p/error.h b/fs/9p/error.h
index 6dbb66f5b28f..2eb5927d589e 100644
--- a/fs/9p/error.h
+++ b/fs/9p/error.h
@@ -139,7 +139,7 @@ static struct errormap errmap[] = {
         {"illegal mode", EINVAL},
         {"illegal name", ENAMETOOLONG},
         {"not a directory", ENOTDIR},
-        {"not a member of proposed group", EINVAL},
+        {"not a member of proposed group", EPERM},
         {"not owner", EACCES},
         {"only owner can change group in wstat", EACCES},
         {"read only file system", EROFS},