diff --git a/doc/portability_guide.htm b/doc/portability_guide.htm
index 676c25cb..af53b145 100644
--- a/doc/portability_guide.htm
+++ b/doc/portability_guide.htm
@@ -34,7 +34,7 @@
 
 <p>
 <a href="#Introduction">Introduction</a><br>
-<a href="#name_check­_functions">name_check functions</a><br>
+<a href="#name_check_functions">name_check functions</a><br>
 <a href="#recommendations">File and directory name recommendations</a></p>
 <h2><a name="Introduction">Introduction</a></h2>
 <p>Like any other C++ program which performs I/O operations, there is no 
@@ -54,7 +54,7 @@
 
 <p>Almost all modern operating systems support multiple file systems. At the 
 minimum, they support a native file system plus a CD-ROM file system (Generally 
-ISO-9669, often with Juliet extensions).</p>
+ISO-9669, often with Joliet extensions).</p>
 
 <p>Each file system 
 may have its own naming rules. For example, modern versions of Windows support NTFS, FAT, FAT32, and ISO-9660 file systems, among others, and the naming rules 
@@ -68,7 +68,7 @@
 give the programmer a &quot;fighting chance&quot; to achieve portability by early 
 detection of common naming problems.</p>
 
-<h2><a name="name_check­_functions">name_check functions</a></h2>
+<h2><a name="name_check_functions">name_check functions</a></h2>
 
 <p>A <i>name_check</i> function 
 returns true if its argument is valid as a directory and regular file name for a 
@@ -158,7 +158,7 @@
   </tr>
   <tr>
     <td valign="top">Limit file and directory names to the characters A-Z, a-z, 0-9, period, hyphen, and
-    underscore.<p>Use any of the &quot;portable_&quot; <a href="#name_check­_functions">
+    underscore.<p>Use any of the &quot;portable_&quot; <a href="#name_check_functions">
     name check functions</a> to enforce this recommendation.</td>
     <td valign="top">These are the characters specified by the POSIX standard for portable directory and
     file names, and are also valid for Windows, Mac, and many other modern file systems.</td>