diff --git a/unix/zerrors_linux_amd64.go b/unix/zerrors_linux_amd64.go
index c4bf9cb..f92cff6 100644
--- a/unix/zerrors_linux_amd64.go
+++ b/unix/zerrors_linux_amd64.go
@@ -78,6 +78,7 @@
 	FS_IOC_GET_ENCRYPTION_NONCE      = 0x8010661b
 	FS_IOC_GET_ENCRYPTION_POLICY     = 0x400c6615
 	FS_IOC_GET_ENCRYPTION_PWSALT     = 0x40106614
+	FS_IOC_SETFLAGS                  = 0x40086602
 	FS_IOC_SET_ENCRYPTION_POLICY     = 0x800c6613
 	F_GETLK                          = 0x5
 	F_GETLK64                        = 0x5