diff --git a/modules/vwmterm2/signals.c b/modules/vwmterm2/signals.c
index 239e7f2..07d78fd 100644
--- a/modules/vwmterm2/signals.c
+++ b/modules/vwmterm2/signals.c
@@ -1,4 +1,5 @@
 #include <vwm.h>
+#include <signal.h>
 
 struct sigaction* vwmterm_sigset(int signum,sighandler_t handler)
 {
diff --git a/vwm_private.h b/vwm_private.h
index 2d48ebf..46457bd 100644
--- a/vwm_private.h
+++ b/vwm_private.h
@@ -2,6 +2,7 @@
 #define _H_VWM_PRIVATE_
 
 #include <glib.h>
+#include <signal.h>
 
 #ifdef _VIPER_WIDE
 #include <ncursesw/curses.h>