diff --git a/sungrow.go b/sungrow.go
index 6b004be..2b9ba8d 100644
--- a/sungrow.go
+++ b/sungrow.go
@@ -97,7 +97,7 @@ func (c *sungrowConn) Read(out []byte) (int, error) {
 	pktlen, padlen := int(hdr[2]), int(hdr[3])
 	bs := c.block.BlockSize()
 	if (pktlen+padlen)%bs != 0 {
-		return 0, fmt.Errorf("pktlen + padlen = %d + %d = %d, want divisble by %d", pktlen, padlen, pktlen+padlen, bs)
+		return 0, fmt.Errorf("pktlen + padlen = %d + %d = %d, want divisible by %d", pktlen, padlen, pktlen+padlen, bs)
 	}
 	pkt := make([]byte, pktlen+padlen)
 	if _, err := io.ReadFull(c.Conn, pkt); err != nil {