diff --git a/src/openvpn/tun.c b/src/openvpn/tun.c
index 4b0365d5..9912b071 100644
--- a/src/openvpn/tun.c
+++ b/src/openvpn/tun.c
@@ -73,6 +73,8 @@ static void solaris_error_close (struct tuntap *tt, const struct env_set *es, co
 #include <stropts.h>
 #endif
 
+static void clear_tuntap (struct tuntap *tuntap);
+
 bool
 is_dev_type (const char *dev, const char *dev_type, const char *match_type)
 {
diff --git a/src/openvpn/tun.h b/src/openvpn/tun.h
index 8622bf81..c3fc62e1 100644
--- a/src/openvpn/tun.h
+++ b/src/openvpn/tun.h
@@ -203,8 +203,6 @@ tuntap_defined (const struct tuntap *tt)
  * Function prototypes
  */
 
-static void clear_tuntap (struct tuntap *tuntap);
-
 void open_tun (const char *dev, const char *dev_type, const char *dev_node,
 	       struct tuntap *tt);