diff --git a/src/main.c b/src/main.c
index f45dab4..51a34f9 100644
--- a/src/main.c
+++ b/src/main.c
@@ -349,7 +349,7 @@ main(int argc, char *argv[])
 
 	/* Wait for the device to send the BOOTME sequence.
 	 * If the UBL is already running, it will send BOOTPSP. */
-	found = wait_for_message("BOOTME", "BOOTPSP", NULL);
+	found = wait_for_message("BOOTME", "BOOTPSP", "I_ME");
 	if (found == 0)
 		goto error;
 	else if (found == 1) {
@@ -358,6 +358,10 @@ main(int argc, char *argv[])
 		ret = send_binary(options->ubl, "/tmp/ubl.bin", SEND_UBL, 0, 0);
 		if (ret)
 			goto error;
+	} else if (found == 3) {
+		log_info("Sending interrupt command to UBL ($%08X)", 0x23);
+		send_message("    CMD\n");
+		send_number(0x23, 8);
 	}
 
 	/* UBL is now running. Send command */