diff --git a/doc/forum/build_error:_Cannot_decode_string_with_wide_characters.mdwn b/doc/forum/build_error:_Cannot_decode_string_with_wide_characters.mdwn
new file mode 100644
index 000000000..282227e0f
--- /dev/null
+++ b/doc/forum/build_error:_Cannot_decode_string_with_wide_characters.mdwn
@@ -0,0 +1,12 @@
+  $ ikiwiki -setup mywiki.setup
+  generating wrappers..
+  rebuilding wiki..
+  Cannot decode string with wide characters at /opt/local/lib/perl5/5.12.3/darwin-multi-2level/Encode.pm line 175.
+
+I am running Mac OS X 10.6.8
+
+  $ ikiwiki --version
+  ikiwiki version 3.20110608
+  $ perl --version
+  
+  This is perl 5, version 12, subversion 3 (v5.12.3) built for darwin-multi-2level