diff --git a/firmware/drivers/i2c-pp5020.c b/firmware/drivers/i2c-pp5020.c
index 77671e79d8..0c594ecbe3 100644
--- a/firmware/drivers/i2c-pp5020.c
+++ b/firmware/drivers/i2c-pp5020.c
@@ -152,7 +152,6 @@ static struct mutex i2c_mutex;
 
 int i2c_readbyte(unsigned int dev_addr, int addr)
 {
-    int retval;
     int data;
 
     mutex_lock(&i2c_mutex);