diff --git a/boards/arm/samv7/samv71-xult/src/sam_ili9488.c b/boards/arm/samv7/samv71-xult/src/sam_ili9488.c
index be0009e058..7480fec7bf 100644
--- a/boards/arm/samv7/samv71-xult/src/sam_ili9488.c
+++ b/boards/arm/samv7/samv71-xult/src/sam_ili9488.c
@@ -382,7 +382,7 @@ static void sam_lcd_dump(struct sam_dev_s *priv);
 #endif
 
 static void sam_lcd_endwait(struct sam_dev_s *priv, int result);
-static void sam_lcd_dmatimeout(int argc, uint32_t arg);
+static void sam_lcd_dmatimeout(int argc, uint32_t arg, ...);
 static int  sam_lcd_dmawait(FAR struct sam_dev_s *priv, uint32_t timeout);
 static void sam_lcd_dmacallback(DMA_HANDLE handle, void *arg, int result);
 static int  sam_lcd_txtransfer(FAR struct sam_dev_s *priv,
@@ -939,7 +939,7 @@ static void sam_lcd_endwait(struct sam_dev_s *priv, int result)
  *
  ****************************************************************************/
 
-static void sam_lcd_dmatimeout(int argc, uint32_t arg)
+static void sam_lcd_dmatimeout(int argc, uint32_t arg, ...)
 {
   struct sam_dev_s *priv = (struct sam_dev_s *)arg;
 
@@ -981,7 +981,7 @@ static int sam_lcd_dmawait(FAR struct sam_dev_s *priv, uint32_t timeout)
 
   /* Started ... setup the timeout */
 
-  ret = wd_start(priv->dmadog, timeout, (wdentry_t)sam_lcd_dmatimeout,
+  ret = wd_start(priv->dmadog, timeout, sam_lcd_dmatimeout,
                  1, (uint32_t)priv);
   if (ret < 0)
     {
diff --git a/boards/sim/sim/sim/src/sim_gpio.c b/boards/sim/sim/sim/src/sim_gpio.c
index b6ba6d8662..8ebe213dda 100644
--- a/boards/sim/sim/sim/src/sim_gpio.c
+++ b/boards/sim/sim/sim/src/sim_gpio.c
@@ -202,7 +202,7 @@ static int gpint_enable(FAR struct gpio_dev_s *dev, bool enable)
         {
           gpioinfo("Start 1 second timer\n");
           wd_start(simgpint->wdog, SEC2TICK(1),
-                   (wdentry_t)sim_interrupt, 1, (wdparm_t)dev);
+                   sim_interrupt, 1, (wdparm_t)dev);
         }
     }
   else