diff --git a/src/qtgui/rclmain_w.cpp b/src/qtgui/rclmain_w.cpp
index ed114271..ad2a2b99 100644
--- a/src/qtgui/rclmain_w.cpp
+++ b/src/qtgui/rclmain_w.cpp
@@ -211,6 +211,7 @@ void RclMain::init()
     bgrp->addButton(allRDB, bgrpid++);
     connect(bgrp, SIGNAL(buttonClicked(int)), this, SLOT(catgFilter(int)));
 #endif
+    allRDB->setChecked(true);
     list<string> cats;
     rclconfig->getMimeCategories(cats);
     // Text for button 0 is not used. Next statement just avoids unused