--- a/help_browser.cc
+++ b/help_browser.cc
@@ -23,7 +23,7 @@
 #include <webkit/webkit.h>
 
 static std::list<std::string> doc_path;
-const static std::string overview_subdir = "overview" + file_ops::dir_sep_str ();
+const static std::string overview_subdir = "overview" + file_ops::dir_sep_str;
 const static std::string start_page = "/home/sh/Dokumenter/octave/help_browser/start_page.html";
 
 static std::string doc;
@@ -260,7 +260,7 @@
     {
       p = file_ops::canonicalize_file_name (p);
       if (!file_ops::is_dir_sep (p [p.size ()-1]))
-        p += file_ops::dir_sep_str ();
+        p += file_ops::dir_sep_str;
       
       const std::string po = p + overview_subdir;