diff --git a/scripts/generate_ssl_debug_helpers.py b/scripts/generate_ssl_debug_helpers.py
index a0544f1..043cef1 100755
--- a/scripts/generate_ssl_debug_helpers.py
+++ b/scripts/generate_ssl_debug_helpers.py
@@ -328,7 +328,7 @@
             {translation_table}
                 }};
 
-                return "UNKOWN";
+                return "UNKNOWN";
             }}''')
         body = body.format(translation_table='\n'.join(translation_table))
         return body