diff --git a/drivers/input/cypress_mbr3108.c b/drivers/input/cypress_mbr3108.c
index 881c770b720..36ab4c678df 100644
--- a/drivers/input/cypress_mbr3108.c
+++ b/drivers/input/cypress_mbr3108.c
@@ -953,6 +953,7 @@ static int mbr3108_close(FAR struct file *filep)
   FAR struct inode *inode;
   FAR struct mbr3108_dev_s *priv;
   int use_count;
+  int ret;
 
   DEBUGASSERT(filep);
   inode = filep->f_inode;