diff --git a/c/syscalls.c b/c/syscalls.c
index fe11e81..2be25a8 100644
--- a/c/syscalls.c
+++ b/c/syscalls.c
@@ -5,6 +5,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <time.h> /* for time() */
 #include <sys/signal.h>
 #include <signal.h>
 #include <sys/types.h>