diff --git a/sw/irq.c b/sw/irq.c
index f1baddc..313ea7d 100644
--- a/sw/irq.c
+++ b/sw/irq.c
@@ -10,7 +10,6 @@ char lastchar;
 
 void handle_irq() {
     uint8_t status;
-    char c;
 
     status = irq_get_status();