diff --git a/src/include/66/svc.h b/src/include/66/svc.h
index 6918af3f2c0d917600576b4b33e383c07b0fb776..d378f0452a24e491efe3f0e650386dc8c51061ed 100644
--- a/src/include/66/svc.h
+++ b/src/include/66/svc.h
@@ -25,7 +25,7 @@
 
 #include <66/service.h>
 
-#define DATASIZE 64
+#define DATASIZE 65
 
 #define SVC_FLAGS_STARTING 1 // 1 starting not really up
 #define SVC_FLAGS_STOPPING (1 << 1) // 2 stopping not really down