diff --git a/src/ctype.cpp b/src/ctype.cpp
index db860a5e..d1105286 100644
--- a/src/ctype.cpp
+++ b/src/ctype.cpp
@@ -18,9 +18,6 @@
  * along with ucd-tools.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-// NOTE: This file is automatically generated from the UnicodeData.txt file in
-// the Unicode Character database by the ucd-tools/tools/categories.py script.
-
 #include "ucd/ucd.h"
 
 int ucd::isalnum(codepoint_t c)