diff --git a/src/libopensc/card-coolkey.c b/src/libopensc/card-coolkey.c
index e320290dfe..11c4e92643 100644
--- a/src/libopensc/card-coolkey.c
+++ b/src/libopensc/card-coolkey.c
@@ -1168,12 +1168,16 @@ static int coolkey_write_object(sc_card_t *card, unsigned long object_id,
 	size_t operation_len;
 	size_t left = buf_len;
 	int r;
+	size_t max_operation_len;
+
+	/* set limit for the card's maximum send size and short write */
+	max_operation_len = MIN(COOLKEY_MAX_CHUNK_SIZE, (card->max_send_size - sizeof(coolkey_read_object_param_t) - nonce_size));
 
 	ulong2bebytes(&params.head.object_id[0], object_id);
 
 	do {
 		ulong2bebytes(&params.head.offset[0], offset);
-		operation_len = MIN(left, COOLKEY_MAX_CHUNK_SIZE);
+		operation_len = MIN(left, max_operation_len);
 		params.head.length = operation_len;
 		memcpy(params.buf, buf, operation_len);
 		r = coolkey_apdu_io(card, COOLKEY_CLASS, COOLKEY_INS_WRITE_OBJECT, 0, 0,