diff --git a/bin/createdoc.sh b/bin/createdoc.sh
index d64fa10a1..4e4dbc754 100755
--- a/bin/createdoc.sh
+++ b/bin/createdoc.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 
-for filepath in `find ../doc -type f -name "*.txt"`; do
-    markdown $filepath > `dirname $filepath`/`basename $filepath .txt`.html
+for filepath in `find ../doc -type f -name "*.md"`; do
+    markdown $filepath > `dirname $filepath`/`basename $filepath .md`.html
 done
 
 exit 0