diff --git a/README.md b/README.md
index 24c3de86..47023643 100644
--- a/README.md
+++ b/README.md
@@ -497,9 +497,13 @@ like Rack::Auth, OmniAuth, etc.
     Precious::App.set(:wiki_options, {:universal_toc => false})
     run Precious::App
 
-## Windows Filename Validation
+## WINDOWS FILENAME VALIDATION
 Note that filenames on windows must not contain any of the following characters `\ / : * ? " < > |`. See [this support article](http://support.microsoft.com/kb/177506) for details.
 
+## LIB.SO ERROR
+
+`Could not open library 'lib.so'` may be solved by installing `python-devel` on Fedora or `python-dev` on Ubuntu.
+
 ## CONTRIBUTE
 
 If you'd like to hack on Gollum, start by forking my repo on GitHub: