diff --git a/src/libopensc/card-cardos.c b/src/libopensc/card-cardos.c
index 3e8438bb..555eabe9 100644
--- a/src/libopensc/card-cardos.c
+++ b/src/libopensc/card-cardos.c
@@ -52,6 +52,8 @@ static struct sc_atr_table cardos_atrs[] = {
 	{ "3b:f4:98:00:ff:c1:10:31:fe:55:4d:34:63:76:b4", NULL, NULL, SC_CARD_TYPE_CARDOS_GENERIC, 0, NULL},
 	/* cardos m4.2 and above */
 	{ "3b:f2:18:00:ff:c1:0a:31:fe:55:c8:06:8a", "ff:ff:0f:ff:00:ff:00:ff:ff:00:00:00:00", NULL, SC_CARD_TYPE_CARDOS_M4_2, 0, NULL },
+	/* CardOS 4.4 */
+	{ "3b:d2:18:02:c1:0a:31:fe:58:c8:0d:51", NULL, NULL, SC_CARD_TYPE_CARDOS_M4_4, 0, NULL},
 	{ NULL, NULL, NULL, 0, 0, NULL }
 };
 
@@ -65,6 +67,8 @@ static int cardos_match_card(sc_card_t *card)
 	/* Do not change card type for CIE! */
 	if (card->type == SC_CARD_TYPE_CARDOS_CIE_V1)
 		return 1;
+	if (card->type == SC_CARD_TYPE_CARDOS_M4_4)
+		return 1;
 	if (card->type == SC_CARD_TYPE_CARDOS_M4_2) {
 		int rv;
 		sc_apdu_t apdu;
@@ -171,7 +175,8 @@ static int cardos_init(sc_card_t *card)
 		card->caps |= SC_CARD_CAP_APDU_EXT;
 	} else if (card->type == SC_CARD_TYPE_CARDOS_M4_3 
 		|| card->type == SC_CARD_TYPE_CARDOS_M4_2B
-		|| card->type == SC_CARD_TYPE_CARDOS_M4_2C) {
+		|| card->type == SC_CARD_TYPE_CARDOS_M4_2C
+		|| card->type == SC_CARD_TYPE_CARDOS_M4_4) {
 		card->caps |= SC_CARD_CAP_RSA_2048;
 		card->caps |= SC_CARD_CAP_APDU_EXT;
 	}
@@ -650,7 +655,8 @@ static int cardos_create_file(sc_card_t *card, sc_file_t *file)
 	} else if (card->type == SC_CARD_TYPE_CARDOS_M4_2 ||
 	           card->type == SC_CARD_TYPE_CARDOS_M4_3 ||
 		   card->type == SC_CARD_TYPE_CARDOS_M4_2B ||
-	           card->type == SC_CARD_TYPE_CARDOS_M4_2C) {
+	           card->type == SC_CARD_TYPE_CARDOS_M4_2C ||
+		   card->type == SC_CARD_TYPE_CARDOS_M4_4) {
 		u8        sbuf[SC_MAX_APDU_BUFFER_SIZE];
 		size_t    len = sizeof(sbuf);
 		sc_apdu_t apdu;
diff --git a/src/libopensc/cards.h b/src/libopensc/cards.h
index 937b18ff..12627b33 100644
--- a/src/libopensc/cards.h
+++ b/src/libopensc/cards.h
@@ -45,6 +45,7 @@ enum {
 	SC_CARD_TYPE_CARDOS_M4_2B, /* 4.2b is after 4.3b */
 	SC_CARD_TYPE_CARDOS_M4_2C,
 	SC_CARD_TYPE_CARDOS_CIE_V1, /* Italian CIE (eID) v1 */
+	SC_CARD_TYPE_CARDOS_M4_4,
 
 	/* flex/cyberflex drivers */
 	SC_CARD_TYPE_FLEX_BASE = 2000,
diff --git a/src/pkcs15init/pkcs15-cardos.c b/src/pkcs15init/pkcs15-cardos.c
index 97e1df4c..0b4aa6ae 100644
--- a/src/pkcs15init/pkcs15-cardos.c
+++ b/src/pkcs15init/pkcs15-cardos.c
@@ -648,7 +648,7 @@ cardos_put_key(sc_profile_t *profile, struct sc_pkcs15_card *p15card,
 	key_id = key_info->key_reference;
 	if (key_info->modulus_length > 1024 && (card->type == SC_CARD_TYPE_CARDOS_M4_2 ||
 	    card->type == SC_CARD_TYPE_CARDOS_M4_3 ||card->type == SC_CARD_TYPE_CARDOS_M4_2B ||
-	    card->type == SC_CARD_TYPE_CARDOS_M4_2C )) {
+	    card->type == SC_CARD_TYPE_CARDOS_M4_2C ||card->type == SC_CARD_TYPE_CARDOS_M4_4)) {
 		r = cardos_store_key_component(card, algorithm, key_id, pin_id, 0,
 			key->p.data, key->p.len, 0, 0);
 		if (r != SC_SUCCESS)
diff --git a/src/tools/cardos-tool.c b/src/tools/cardos-tool.c
index a455aba9..50cd2cd3 100644
--- a/src/tools/cardos-tool.c
+++ b/src/tools/cardos-tool.c
@@ -170,6 +170,8 @@ static int cardos_info(void)
 		printf(" (that's CardOS M4.2B)\n");
 	} else if (apdu.resp[0] == 0xc8 && apdu.resp[1] == 0x0B) {
 		printf(" (that's CardOS M4.2C)\n");	
+	} else if (apdu.resp[0] == 0xc8 && apdu.resp[1] == 0x0D) {
+		printf(" (that's CardOS M4.4)\n");	
 	} else {
 		printf(" (unknown Version)\n");
 	}
@@ -555,8 +557,9 @@ static int cardos_format(const char *opt_startkey)
 	}
 	if ((rbuf[0] != 0xc8 || rbuf[1] != 0x09) &&	/* M4.2B */
 		(rbuf[0] != 0xc8 || rbuf[1] != 0x08) && /* M4.3B */
-		(rbuf[0] != 0xc8 || rbuf[1] != 0x0B)) { /* M4.2C */
-		printf("currently only CardOS M4.2B, M4.2C and M4.3B are supported, aborting\n");
+		(rbuf[0] != 0xc8 || rbuf[1] != 0x0B) && /* M4.2C */
+		(rbuf[0] != 0xc8 || rbuf[1] != 0x0D)) { /* M4.4 */
+		printf("currently only CardOS M4.2B, M4.2C, M4.3B and M4.4 are supported, aborting\n");
 		return 1;
 	}