diff --git a/src/libopensc/card-starcos.c b/src/libopensc/card-starcos.c
index 9025b82f..85d11811 100644
--- a/src/libopensc/card-starcos.c
+++ b/src/libopensc/card-starcos.c
@@ -314,6 +314,7 @@ static int starcos_init(sc_card_t *card)
 		else
 			card->name = "STARCOS 3.5";
 		card->caps |= SC_CARD_CAP_ISO7816_PIN_INFO;
+		card->caps |= SC_CARD_CAP_APDU_EXT;
 
 		flags |= SC_CARD_FLAG_RNG
 			| SC_ALGORITHM_RSA_HASH_SHA224