diff --git a/src/fcntl/posix_fallocate.c b/src/fcntl/posix_fallocate.c
index bd726242..80a65cbf 100644
--- a/src/fcntl/posix_fallocate.c
+++ b/src/fcntl/posix_fallocate.c
@@ -3,6 +3,6 @@
 
 int posix_fallocate(int fd, off_t base, off_t len)
 {
-	return -__syscall(SYS_fallocate, fd, __SYSCALL_LL_O(base),
+	return -__syscall(SYS_fallocate, fd, 0, __SYSCALL_LL_E(base),
 		__SYSCALL_LL_E(len));
 }