diff --git a/src/lcd.c b/src/lcd.c
index 42838e9..3c56df5 100644
--- a/src/lcd.c
+++ b/src/lcd.c
@@ -29,7 +29,7 @@ void lcd_close(struct lcd_t *lcd) {
 }
 
 void lcd_write(struct lcd_t *lcd, const uint8_t *cmdbuf, const uint8_t len) {
-	if (!write(lcd->fd, cmdbuf, len)) {
+	if (write(lcd->fd, cmdbuf, len) <= 0) {
 		applog(LOG_ERR, "failed to execute write(), lost access to port?");
 		lcd_open(lcd, true);
 	}