diff --git a/apps/opencs/model/prefs/category.cpp b/apps/opencs/model/prefs/category.cpp
index 0de192eb5..6af0ac645 100644
--- a/apps/opencs/model/prefs/category.cpp
+++ b/apps/opencs/model/prefs/category.cpp
@@ -4,6 +4,7 @@
 #include <stdexcept>
 
 #include "setting.hpp"
+#include "state.hpp"
 
 CSMPrefs::Category::Category (State *parent, const std::string& key)
 : mParent (parent), mKey (key)
@@ -42,3 +43,9 @@ CSMPrefs::Setting& CSMPrefs::Category::operator[] (const std::string& key)
 
     throw std::logic_error ("Invalid user setting: " + key);
 }
+
+void CSMPrefs::Category::update()
+{
+    for (Iterator iter = mSettings.begin(); iter!=mSettings.end(); ++iter)
+        mParent->update (**iter);
+}
diff --git a/apps/opencs/model/prefs/category.hpp b/apps/opencs/model/prefs/category.hpp
index 7231fddea..b70716aa0 100644
--- a/apps/opencs/model/prefs/category.hpp
+++ b/apps/opencs/model/prefs/category.hpp
@@ -37,6 +37,8 @@ namespace CSMPrefs
             Iterator end();
 
             Setting& operator[] (const std::string& key);
+
+            void update();
     };
 }