diff --git a/libraries/networking/src/udt/ControlPacket.cpp b/libraries/networking/src/udt/ControlPacket.cpp
index 30bf8d452e..b8407d42a4 100644
--- a/libraries/networking/src/udt/ControlPacket.cpp
+++ b/libraries/networking/src/udt/ControlPacket.cpp
@@ -100,7 +100,7 @@ void ControlPacket::readType() {
     Q_ASSERT_X(bitAndType & CONTROL_BIT_MASK, "ControlPacket::readHeader()", "This should be a control packet");
     
     uint16_t packetType = (bitAndType & ~CONTROL_BIT_MASK) >> (8 * sizeof(Type));
-    Q_ASSERT_X(packetType < ControlPacket::Type::TimeoutNAK, "ControlPacket::readType()", "Received a control packet with wrong type");
+    Q_ASSERT_X(packetType <= ControlPacket::Type::TimeoutNAK, "ControlPacket::readType()", "Received a control packet with wrong type");
     
     // read the type
     _type = (Type) packetType;