diff --git a/src/fsfw/util/dataWrapper.h b/src/fsfw/util/dataWrapper.h
index 5ae2c0432..8bb373e64 100644
--- a/src/fsfw/util/dataWrapper.h
+++ b/src/fsfw/util/dataWrapper.h
@@ -36,9 +36,8 @@ struct DataWrapper {
   }
 
   [[nodiscard]] bool isNull() const {
-    if (type == DataTypes::RAW and dataUnion.raw.data == nullptr or
-        (type == DataTypes::SERIALIZABLE and dataUnion.serializable == nullptr) or
-        (type == DataTypes::NONE)) {
+    if ((type == DataTypes::NONE) or (type == DataTypes::RAW and dataUnion.raw.data == nullptr) or
+        (type == DataTypes::SERIALIZABLE and dataUnion.serializable == nullptr)) {
       return true;
     }
     return false;