diff --git a/mkvalidator-ERR009-read-doc-type-version-higher-than-doc-type-version.md b/mkvalidator-ERR009-read-doc-type-version-higher-than-doc-type-version.md
index 867358b..579554f 100644
--- a/mkvalidator-ERR009-read-doc-type-version-higher-than-doc-type-version.md
+++ b/mkvalidator-ERR009-read-doc-type-version-higher-than-doc-type-version.md
@@ -1,4 +1,4 @@
-# mkvalidator error ERR009 "read DocType version higher than DocType version"
+# mkvalidator error ERR009 read DocType version higher than DocType version
 
 ## The problem