diff --git a/FL/Fl_Browser_.H b/FL/Fl_Browser_.H
index 8fb22cae4..613574a01 100644
--- a/FL/Fl_Browser_.H
+++ b/FL/Fl_Browser_.H
@@ -3,7 +3,7 @@
 //
 // Common browser header file for the Fast Light Tool Kit (FLTK).
 //
-// Copyright 1998-2010 by Bill Spitzak and others.
+// Copyright 1998-2016 by Bill Spitzak and others.
 //
 // This library is free software. Distribution and use rights are outlined in
 // the file "COPYING" which should have been included with this file.  If this
diff --git a/src/Fl_Browser.cxx b/src/Fl_Browser.cxx
index e8c00174a..d0a9b9989 100644
--- a/src/Fl_Browser.cxx
+++ b/src/Fl_Browser.cxx
@@ -657,6 +657,9 @@ int Fl_Browser::topline() const {
   internally for optimization of later item changes. This can be slow
   if there are many items in the browser.
 
+  It returns immediately (w/o recalculation) if \p newSize equals
+  the current textsize().
+
   You \e may need to call redraw() to see the effect and to have the
   scrollbar positions recalculated.
 
@@ -664,6 +667,8 @@ int Fl_Browser::topline() const {
   unless you really need to \e change the size later.
 */
 void Fl_Browser::textsize(Fl_Fontsize newSize) {
+  if (newSize == textsize())
+    return; // avoid recalculation
   Fl_Browser_::textsize(newSize);
   new_list();
   full_height_ = 0;