diff --git a/markdown.nanorc b/markdown.nanorc
index 448a396..6507c9b 100644
--- a/markdown.nanorc
+++ b/markdown.nanorc
@@ -1,4 +1,4 @@
-syntax "Markdown" "\.(md|mkd|mkdn|markdown)$"
+syntax "Markdown" "\.(md|mdown|mkd|mkdn|markdown)$"
 
 # Tables (Github extension)
 color cyan ".*[ :]\|[ :].*"