diff --git a/plugins/channelrx/demodais/aisdemodsink.h b/plugins/channelrx/demodais/aisdemodsink.h
index c540af694..05b4fbe7b 100644
--- a/plugins/channelrx/demodais/aisdemodsink.h
+++ b/plugins/channelrx/demodais/aisdemodsink.h
@@ -37,7 +37,7 @@
 #include <iostream>
 #include <fstream>
 
-#define AISDEMOD_MAX_BYTES  (3+1+126+2+1+1)
+#define AISDEMOD_MAX_BYTES  160
 
 class ChannelAPI;
 class AISDemod;