diff --git a/kcms/krdb/krdb.cpp b/kcms/krdb/krdb.cpp
--- a/kcms/krdb/krdb.cpp
+++ b/kcms/krdb/krdb.cpp
@@ -29,6 +29,9 @@
 #include <QFontDatabase>
 #include <QSettings>
 #include <QTextCodec>
+#include <QProcess>
+#include <QLibraryInfo>
+#include <QFile>
 
 #include <QPixmap>
 #include <QByteArray>
@@ -981,5 +984,13 @@
 
   if (exportGtkColors) {
     saveGtkColors();
+    QString path = QLibraryInfo::location(QLibraryInfo::LibraryExecutablesPath);
+    int pos = path.lastIndexOf(QChar('/'));
+    path = path.left(pos);
+    pos = path.lastIndexOf(QChar('/'));
+    path = path.left(pos);
+    if (!QFile::exists(path + "/libexec/breeze-gtk/color_gtk2_theme"))
+      return;
+    QProcess::startDetached(path + "/libexec/breeze-gtk/color_gtk2_theme");
   }
 }