diff --git a/libraries/networking/src/udt/SequenceNumber.h b/libraries/networking/src/udt/SequenceNumber.h
index 9827fc79b2..fae5a7bb01 100644
--- a/libraries/networking/src/udt/SequenceNumber.h
+++ b/libraries/networking/src/udt/SequenceNumber.h
@@ -43,7 +43,7 @@ public:
         return *this;
     }
     inline SequenceNumber& operator--() {
-        _value = (_value - 1) % (MAX + 1);
+        _value = (_value == 0) ? MAX : --_value;
         return *this;
     }
     inline SequenceNumber operator++(int) {