diff --git a/src/mirall/utility.cpp b/src/mirall/utility.cpp
index adfc1e92cd..8365a47c4c 100644
--- a/src/mirall/utility.cpp
+++ b/src/mirall/utility.cpp
@@ -105,10 +105,10 @@ void Utility::setupFavLink(const QString &folder)
 
 QString Utility::octetsToString( qint64 octets )
 {
-    static const qint64 kb = 1000;
-    static const qint64 mb = 1000 * kb;
-    static const qint64 gb = 1000 * mb;
-    static const qint64 tb = 1000 * gb;
+    static const qint64 kb = 1024;
+    static const qint64 mb = 1024 * kb;
+    static const qint64 gb = 1024 * mb;
+    static const qint64 tb = 1024 * gb;
 
     QString s;
     qreal value = octets;