diff --git a/src/apps/proc1.c b/src/apps/proc1.c
index 930f64f..2901fc0 100644
--- a/src/apps/proc1.c
+++ b/src/apps/proc1.c
@@ -1,5 +1,5 @@
 #include <types.h>
-#include <syscall.h>
+#include <cm.h>
 
 void another_thread();