diff --git a/c/src/lib/libcpu/bfin/serial/twi.c b/c/src/lib/libcpu/bfin/serial/twi.c
index 5bdb9ef742..97bddaff6a 100644
--- a/c/src/lib/libcpu/bfin/serial/twi.c
+++ b/c/src/lib/libcpu/bfin/serial/twi.c
@@ -136,7 +136,6 @@ void bfin_twi_isr(int source) {
   int i;
   uint16_t r;
   uint16_t stat;
-  uint8_t data;
 
   for (i = 0; i < N_BFIN_TWI; i++) {
     base = twi[i].base;