diff --git a/linux/devices/devicedefinitions/PlocSupervisorDefinitions.h b/linux/devices/devicedefinitions/PlocSupervisorDefinitions.h
index 0b3ef03a..37275b10 100644
--- a/linux/devices/devicedefinitions/PlocSupervisorDefinitions.h
+++ b/linux/devices/devicedefinitions/PlocSupervisorDefinitions.h
@@ -1080,7 +1080,7 @@ class WriteMemory : public ploc::SpTcBase {
 
   ReturnValue_t buildPacket(ccsds::SequenceFlags seqFlags, uint16_t sequenceCount, uint8_t memoryId,
                             uint32_t startAddress, uint16_t length, uint8_t* updateData) {
-    if (length > CHUNK_MAX + 1) {
+    if (length > CHUNK_MAX) {
       sif::error << "WriteMemory::WriteMemory: Invalid length" << std::endl;
       return SerializeIF::BUFFER_TOO_SHORT;
     }