1 files changed, 1 insertions, 0 deletions

diff --git a/error.c b/error.c
index 2d69457..47837a9 100644
--- a/error.c
+++ b/error.c
@@ -1,5 +1,6 @@
 #include <u.h>
 #include <libc.h>
+#include <thread.h>
 #include <bio.h>
 
 #include "apl9.h"