1 files changed, 1 insertions, 0 deletions

diff --git a/udp.c b/udp.c
index ef486fe..0a711f6 100644
--- a/udp.c
+++ b/udp.c
@@ -91,6 +91,7 @@
  */
 
 #include <sched.h>
+#include <signal.h>
 #include <stdio.h>
 #include <errno.h>
 #include <limits.h>