diff --git a/src/tools/pkcs15-crypt.c b/src/tools/pkcs15-crypt.c
index 24469a7c..57e1ead3 100644
--- a/src/tools/pkcs15-crypt.c
+++ b/src/tools/pkcs15-crypt.c
@@ -104,7 +104,7 @@ char * get_pin(struct sc_pkcs15_object *obj)
 		if (strlen(pincode) < pinfo->min_length ||
 		    strlen(pincode) > pinfo->max_length)
 		    	continue;
-		return pincode;
+		return strdup(pincode);
 	}
 }