1 files changed, 1 insertions, 0 deletions
diff --git a/physics.c b/physics.c
index 1eb528a..78fd494 100644
--- a/physics.c
+++ b/physics.c
@@ -3,6 +3,7 @@
 #include <ip.h>
 #include <mp.h>
 #include <libsec.h>
+#include <thread.h>
 #include <draw.h>
 #include <geometry.h>
 #include "dat.h"