diff --git a/modules/pico_dev_tap.c b/modules/pico_dev_tap.c
index 6998cf48b..b80ea6df7 100644
--- a/modules/pico_dev_tap.c
+++ b/modules/pico_dev_tap.c
@@ -41,7 +41,7 @@ static void sig_handler(int signo)
     link_state = 1;
 }
 
-static int tap_link_state(struct pico_device *self)
+static int tap_link_state(__attribute__((unused)) struct pico_device *self)
 {
   return link_state;
 }
diff --git a/modules/pico_slaacv4.c b/modules/pico_slaacv4.c
index ff9b33d1b..f9ac2161b 100644
--- a/modules/pico_slaacv4.c
+++ b/modules/pico_slaacv4.c
@@ -177,7 +177,7 @@ static void pico_slaacv4_receive_ipconflict(int reason)
 
 }
 
-static void pico_slaacv4_hotplug_cb(struct pico_device *dev, int event)
+static void pico_slaacv4_hotplug_cb(__attribute__((unused)) struct pico_device *dev, int event)
 {
     struct slaacv4_cookie *tmp = &slaacv4_local;