diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index eae2fc7..f1d3033 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -69,7 +69,7 @@ DanbooruMainWindow::DanbooruMainWindow(QWidget *parent)
     qRegisterMetaType<DanbooruPost::Rating>();
 
     // TODO Configurable
-    m_cache = new KImageCache(qApp->applicationName(), 20000000);
+    m_cache = new KImageCache(qApp->applicationName(), DanbooruSettings::self()->cacheSize());
     m_service->setImageCache(m_cache);
 
     // Set up declarative bindings for the QQuickWidget