diff --git a/testing/tox_shell.c b/testing/tox_shell.c
index 521e9f36..0292222b 100644
--- a/testing/tox_shell.c
+++ b/testing/tox_shell.c
@@ -35,7 +35,7 @@
 
 #if defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
 #include <util.h>
-#elif defined(__FreeBSD__)
+#elif defined(__FreeBSD__) || defined(__DragonFly__)
 #include <libutil.h>
 #else
 #include <pty.h>