diff --git a/src/fsfw/cfdp/handler/PutRequest.h b/src/fsfw/cfdp/handler/PutRequest.h
index ba9fbc9a..8ade55d0 100644
--- a/src/fsfw/cfdp/handler/PutRequest.h
+++ b/src/fsfw/cfdp/handler/PutRequest.h
@@ -36,7 +36,7 @@ class PutRequest : public SerializeIF {
   [[nodiscard]] bool isMetadataOnly() const;
 
  private:
-  uint8_t destIdWidth;
+  uint8_t destIdWidth = 0;
   uint8_t metadataOnly = true;
   // Transaction parameters. Omitted if the put request is metadata only.
   const char* destName = nullptr;