diff --git a/src/preferences/preferences.h b/src/preferences/preferences.h
index 987b9e7f7..2aaea0d59 100644
--- a/src/preferences/preferences.h
+++ b/src/preferences/preferences.h
@@ -912,7 +912,7 @@ public:
   }
 
   uint diskCacheSize() const {
-    return value(QString::fromUtf8("Preferences/Downloads/DiskWriteCacheSize"), 0).toUInt();
+    return value(QString::fromUtf8("Preferences/Downloads/DiskWriteCacheSize"), 128).toUInt();
   }
 
   void setDiskCacheSize(uint size) {