diff --git a/src/qtgui/guiutils.cpp b/src/qtgui/guiutils.cpp
index 329ce9d7..cb559d0d 100644
--- a/src/qtgui/guiutils.cpp
+++ b/src/qtgui/guiutils.cpp
@@ -169,6 +169,8 @@ void rwSettings(bool writing)
 
     SETTING_RW(prefs.termMatchType, "/Recoll/prefs/query/termMatchType", 
 	       Int, 0);
+    // This is not really the current program version, just a value to
+    // be used in case we have incompatible changes one day
     SETTING_RW(prefs.rclVersion, "/Recoll/prefs/rclVersion", 
 	       Int, 1009);
 
diff --git a/src/qtgui/guiutils.h b/src/qtgui/guiutils.h
index ab618d99..7b564e69 100644
--- a/src/qtgui/guiutils.h
+++ b/src/qtgui/guiutils.h
@@ -73,10 +73,13 @@ class PrefsPack {
     int pvwidth; // Preview window geom
     int pvheight;
     int ssearchTyp;
-    bool    useDesktopOpen; // typically xdg-open, instead of mimeview settings
-    bool    keepSort;   // Remember sort status between invocations
-    bool    sortActive; // Remembered sort state.
-    bool    sortDesc;  // ..
+    // Use single app (default: xdg-open), instead of per-mime settings
+    bool useDesktopOpen; 
+    // Remember sort state between invocations ?
+    bool keepSort;   
+    bool sortActive; 
+    bool sortDesc; 
+    // Abstract preferences. Building abstracts can slow result display
     bool queryBuildAbstract;
     bool queryReplaceAbstract;
     bool startWithAdvSearchOpen;