diff --git a/ChangeLog b/ChangeLog
index 2db7e6f2be0ac217996319e0217d858c30c6268d..14df8f2b9985b568ebc590a4156b8f189f410153 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -49,6 +49,8 @@ CVS code -
 	  UTF-8 support.  Changes to main() and configure.ac. (DLR)
 	- Fix punctuation relating to "i.e." in various comments and
 	  documentation. (Benno Schulenberg and DLR)
+	- Make bad_mbchar a static const char* const in chars.c, as its
+	  value doesn't change. (DLR)
 - browser.c:
   do_browser()
 	- Refactor the mouse support, modeling it after do_mouse() for
diff --git a/src/chars.c b/src/chars.c
index e1afaa2e2136d11739e0043ca1e3c9380a46a747..1f651264e96c421088be5e1e7e7403368e30ae60 100644
--- a/src/chars.c
+++ b/src/chars.c
@@ -41,7 +41,7 @@ static const wchar_t bad_wchar = 0xFFFD;
 	 * Unicode FFFD (Replacement Character), unless we're
 	 * determining if it's a control character or searching for a
 	 * match to it. */
-static const char *bad_mbchar = "\xEF\xBF\xBD";
+static const char *const bad_mbchar = "\xEF\xBF\xBD";
 static const int bad_mbchar_len = 3;
 
 /* Enable UTF-8 support. */