diff --git a/channels/chan_dahdi.c b/channels/chan_dahdi.c
index f7338aeff0..fd590a2471 100644
--- a/channels/chan_dahdi.c
+++ b/channels/chan_dahdi.c
@@ -50,7 +50,7 @@
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
-#ifdef __NetBSD__
+#if defined(__NetBSD__) || defined(__FreeBSD__)
 #include <pthread.h>
 #include <signal.h>
 #else