diff --git a/mbtk/mbtk_gnssd/gnss_hd8122.c b/mbtk/mbtk_gnssd/gnss_hd8122.c
index 2ae29c1..08216d2 100755
--- a/mbtk/mbtk_gnssd/gnss_hd8122.c
+++ b/mbtk/mbtk_gnssd/gnss_hd8122.c
@@ -417,7 +417,7 @@
     return mbtk_gpio_value_set(GNSS_POWER_GPIO, MBTK_GPIO_DIRECT_OUT, 1);
 }
 
-int gnss_8122_dev_close()
+int gnss_8122_dev_close(int fd)
 {
     return mbtk_gpio_value_set(GNSS_POWER_GPIO, MBTK_GPIO_DIRECT_OUT, 0);
 }