2 files changed, 11 insertions, 2 deletions

diff --git a/common/storage/key.h b/common/storage/key.h
index baabe38..acd81cf 100644
--- a/common/storage/key.h
+++ b/common/storage/key.h
@@ -67,7 +67,7 @@ public:
     static const constexpr size_t INTERNAL_REPR_SIZE = 19;
     static const constexpr size_t DISPLAY_REPR_SIZE = 19;
 
-    Revision(qint64 rev) : rev(rev) {}
+    Revision(size_t rev) : rev(rev) {}
 
     QByteArray toInternalByteArray() const;
     static Revision fromInternalByteArray(const QByteArray &bytes);
@@ -84,7 +84,7 @@ public:
     bool operator!=(const Revision &other) const;
 
 private:
-    qint64 rev;
+    size_t rev;
 };
 
 class Key
diff --git a/common/utils.h b/common/utils.h
index 7066d79..ec1d5b1 100644
--- a/common/utils.h
+++ b/common/utils.h
@@ -27,6 +27,15 @@ namespace Sink {
 QByteArray createUuid();
 
 template <typename T>
+static QByteArray padNumber(T number);
+
+template <>
+QByteArray padNumber<size_t>(size_t number)
+{
+    return padNumber<qint64>(number);
+}
+
+template <typename T>
 static QByteArray padNumber(T number)
 {
     static T uint_num_digits = (T)std::log10(std::numeric_limits<T>::max()) + 1;