diff --git a/io/entry.cpp b/io/entry.cpp
index 28a0bd7..edd327b 100644
--- a/io/entry.cpp
+++ b/io/entry.cpp
@@ -136,6 +136,7 @@ void Entry::setParent(NodeEntry *parent, int index)
 
 /*!
  * \brief Returns an indication whether the instance is an indirect child of the specified \a entry.
+ * \todo Make \a entry const in v4.
  */
 bool Entry::isIndirectChildOf(NodeEntry *entry) const
 {
diff --git a/io/field.h b/io/field.h
index 97df2cb..da041b8 100644
--- a/io/field.h
+++ b/io/field.h
@@ -14,6 +14,7 @@ class AccountEntry;
 
 class PASSWORD_FILE_EXPORT Field {
 public:
+    Field();
     Field(AccountEntry *tiedAccount, const std::string &name = std::string(), const std::string &value = std::string());
     Field(AccountEntry *tiedAccount, std::istream &stream);
 
@@ -38,6 +39,12 @@ protected:
     std::string m_extendedData;
 };
 
+inline Field::Field()
+    : m_type(FieldType::Normal)
+    , m_tiedAccount(nullptr)
+{
+}
+
 /*!
  * \brief Returns an indication whether the entry is empty.
  */