diff --git a/src/cmds/ntux_cmd_chmod.c b/src/cmds/ntux_cmd_chmod.c
index b90acfe..be93f83 100644
--- a/src/cmds/ntux_cmd_chmod.c
+++ b/src/cmds/ntux_cmd_chmod.c
@@ -155,9 +155,10 @@ int ntux_cmd_chmod(const struct ntux_driver_ctx * dctx, const char * dunit)
 			NT_FILE_SHARE_READ
 				| NT_FILE_SHARE_WRITE
 				| NT_FILE_SHARE_DELETE)))
-		return ntux_cmd_chmod_ret(
-			fd,ofd,0,
-			NTUX_SYSTEM_ERROR(dctx));
+		if (ntux_errno_set(dctx,EACCES))
+			return ntux_cmd_chmod_ret(
+				fd,ofd,0,
+				NTUX_SYSTEM_ERROR(dctx));
 
 	/* srcsd */
 	srcsd = (nt_sd *)buf;
@@ -168,16 +169,18 @@ int ntux_cmd_chmod(const struct ntux_driver_ctx * dctx, const char * dunit)
 				| NT_GROUP_SECURITY_INFORMATION
 				| NT_DACL_SECURITY_INFORMATION,
 			srcsd,sizeof(buf),&size)))
-		return ntux_cmd_chmod_ret(
-			fd,ofd,hasync,
-			NTUX_SYSTEM_ERROR(dctx));
+		if (ntux_errno_set(dctx,ENXIO))
+			return ntux_cmd_chmod_ret(
+				fd,ofd,hasync,
+				NTUX_SYSTEM_ERROR(dctx));
 
 	if ((status = __xfi_acl_init_common_descriptor_meta(
 			&meta,srcsd,
 			NT_ACL_INIT_COMMON_DESCRIPTION_META_STRICT_MODE)))
-		return ntux_cmd_chmod_ret(
-			fd,ofd,hasync,
-			NTUX_SYSTEM_ERROR(dctx));
+		if (ntux_errno_set(dctx,EBADF))
+			return ntux_cmd_chmod_ret(
+				fd,ofd,hasync,
+				NTUX_SYSTEM_ERROR(dctx));
 
 	/* source permissions */
 	access_owner  = meta.owner_ace  ? meta.owner_ace->mask  : 0;
@@ -208,9 +211,10 @@ int ntux_cmd_chmod(const struct ntux_driver_ctx * dctx, const char * dunit)
 
 	if ((status = __xfi_set_security_object(
 			hasync,sec_mask,&dstsd.sd)))
-		return ntux_cmd_chmod_ret(
-			fd,ofd,hasync,
-			NTUX_SYSTEM_ERROR(dctx));
+		if (ntux_errno_set(dctx,EPERM))
+			return ntux_cmd_chmod_ret(
+				fd,ofd,hasync,
+				NTUX_SYSTEM_ERROR(dctx));
 
 	/* changes */
 	(void)fdout;