diff --git a/src/flag.rs b/src/flag.rs
index ea48eda..fd3e347 100644
--- a/src/flag.rs
+++ b/src/flag.rs
@@ -27,6 +27,7 @@ pub const MODE_TYPE: u16 = 0xF000;
 pub const MODE_DIR: u16 = 0x4000;
 pub const MODE_FILE: u16 = 0x8000;
 pub const MODE_SYMLINK: u16 = 0xA000;
+pub const MODE_FIFO: u16 = 0x1000;
 pub const MODE_CHR: u16 = 0x2000;
 
 pub const MODE_PERM: u16 = 0x0FFF;