diff --git a/lib/roken/verr.c b/lib/roken/verr.c
index 668670e40..e2e510b2f 100644
--- a/lib/roken/verr.c
+++ b/lib/roken/verr.c
@@ -37,6 +37,7 @@ RCSID("$Id$");
 #endif
 
 #include "roken.h"
+#include <err.h>
 
 void
 verr(int eval, const char *fmt, va_list ap)
diff --git a/lib/roken/verrx.c b/lib/roken/verrx.c
index 918dc4e9a..0fcbf3f93 100644
--- a/lib/roken/verrx.c
+++ b/lib/roken/verrx.c
@@ -37,6 +37,7 @@ RCSID("$Id$");
 #endif
 
 #include "roken.h"
+#include <err.h>
 
 void
 verrx(int eval, const char *fmt, va_list ap)
diff --git a/lib/roken/vwarn.c b/lib/roken/vwarn.c
index 192d34f43..4f84ddfde 100644
--- a/lib/roken/vwarn.c
+++ b/lib/roken/vwarn.c
@@ -37,6 +37,7 @@ RCSID("$Id$");
 #endif
 
 #include "roken.h"
+#include <err.h>
 
 void
 vwarn(const char *fmt, va_list ap)
diff --git a/lib/roken/vwarnx.c b/lib/roken/vwarnx.c
index ef181cd26..43e0b3e0c 100644
--- a/lib/roken/vwarnx.c
+++ b/lib/roken/vwarnx.c
@@ -37,6 +37,7 @@ RCSID("$Id$");
 #endif
 
 #include "roken.h"
+#include <err.h>
 
 void
 vwarnx(const char *fmt, va_list ap)