diff --git a/dml_streamer.c b/dml_streamer.c
index e6af58b..b7ee86e 100644
--- a/dml_streamer.c
+++ b/dml_streamer.c
@@ -167,7 +167,7 @@ void send_data(void *data, size_t size)
 	timestamp = (uint64_t)ts.tv_sec << 16;
 	timestamp |= prev_ctr;
 	
-	printf("timestamp: 0x%016llx\n", timestamp);
+	printf("timestamp: 0x%016"PRIx64"\n", timestamp);
 	dml_packet_send_data(dml_con, packet_id, data, size, timestamp, dk);
 }
 
diff --git a/isom.c b/isom.c
index 99159ed..86843fc 100644
--- a/isom.c
+++ b/isom.c
@@ -15,7 +15,7 @@
 	along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
  */
-#define TESTMAIN
+//#define TESTMAIN
 
 #include <string.h>
 #include <stdlib.h>