diff --git a/arch/platform/cooja/net/uip-driver.h b/arch/platform/cooja/net/uip-driver.h
index a711313b8..ea0a43e42 100644
--- a/arch/platform/cooja/net/uip-driver.h
+++ b/arch/platform/cooja/net/uip-driver.h
@@ -40,13 +40,6 @@
 #define UIP_DRIVER_H_
 
 #include "net/netstack.h"
-
-#if NETSTACK_CONF_WITH_IPV6
-uint8_t uip_driver_send(const uip_lladdr_t *);
-#else
-uint8_t uip_driver_send(void);
-#endif
-
 extern const struct network_driver uip_driver;
 
 #endif /* UIP_DRIVER_H_ */