diff --git a/arch/tile/include/asm/compat.h b/arch/tile/include/asm/compat.h
index 78f1f2ded86c7ae6dac3c156f1aa393653058b33..ffd4493efc7812aa546203c6afdac26532f2f71f 100644
--- a/arch/tile/include/asm/compat.h
+++ b/arch/tile/include/asm/compat.h
@@ -281,7 +281,6 @@ long compat_sys_pread64(unsigned int fd, char __user *ubuf, size_t count,
 			u32 dummy, u32 low, u32 high);
 long compat_sys_pwrite64(unsigned int fd, char __user *ubuf, size_t count,
 			 u32 dummy, u32 low, u32 high);
-long compat_sys_lookup_dcookie(u32 low, u32 high, char __user *buf, size_t len);
 long compat_sys_sync_file_range2(int fd, unsigned int flags,
 				 u32 offset_lo, u32 offset_hi,
 				 u32 nbytes_lo, u32 nbytes_hi);