diff --git a/impl/src/main.c b/impl/src/main.c
index 92e9fdf..7ed6b7f 100644
--- a/impl/src/main.c
+++ b/impl/src/main.c
@@ -75,8 +75,6 @@ void print_complex_array(const char *varname, float complex const *array, size_t
 
 void cb_rx(rx_evt_t evt, const struct layer1_rx_s *rx, uint8_t *packet_data, size_t packet_len)
 {
-	int ret;
-
 	switch(evt)
 	{
 		case RX_EVT_DECODE_FAILED: