diff --git a/doc/utils/txt2html/README.html b/doc/utils/txt2html/README.html
index 90ddaa1c49..b92214425e 100644
--- a/doc/utils/txt2html/README.html
+++ b/doc/utils/txt2html/README.html
@@ -205,7 +205,7 @@ which are converted into HTML.
   <LI> "}" (right bracket) --&gt; turn-off italics by 
     inserting a &lt;/I&gt; </UL>
 
-<P>If a backspace '\' preceeds any of the bold/italic mark-up characters,
+<P>If a backspace '\' precedes any of the bold/italic mark-up characters,
 then mark-up is not performed; the mark-up character is simply left in
 the text.
 </P>
diff --git a/doc/utils/txt2html/txt2html.cpp b/doc/utils/txt2html/txt2html.cpp
index d7f411be9b..ff71c262c8 100644
--- a/doc/utils/txt2html/txt2html.cpp
+++ b/doc/utils/txt2html/txt2html.cpp
@@ -561,7 +561,7 @@ void substitute(string &s)
   string punctuation = ".,?!;:()";
 
   // substitute for bold & italic markers
-  // if preceeded by \ char, then leave markers in text
+  // if preceded by \ char, then leave markers in text
 
   n = s.find_first_of("[]{}");
   while (n != string::npos) {