diff --git a/docs/TRANSLATIONS.md b/docs/TRANSLATIONS.md
index 70f190fa55..0bcb6fa42c 100644
--- a/docs/TRANSLATIONS.md
+++ b/docs/TRANSLATIONS.md
@@ -49,6 +49,11 @@ By default, it searches `strings.txt`, to check `types_strings.txt` add a `-t` o
 There are many more other options, e.g. print various translation statistics, validate and re-format translation files.
 Check `tools/python/strings_utils.py -h` to see all of them.
 
+To check consistency of types_strings.txt with categories.txt run:
+```
+ruby tools/ruby/category_consistency/check_consistency.rb
+```
+
 ## Automatic translations
 
 In some cases automatically translated strings are better than no translation at all.
diff --git a/tools/ruby/category_consistency/omim_parsers.rb b/tools/ruby/category_consistency/omim_parsers.rb
index 8c55cb99cc..440946524b 100644
--- a/tools/ruby/category_consistency/omim_parsers.rb
+++ b/tools/ruby/category_consistency/omim_parsers.rb
@@ -1,6 +1,11 @@
 module OmimParsers
-  LANGUAGES = %w(en ru ar cs da nl fi fr de hu id it ja ko nb pl
-                 pt ro es sv th tr uk vi zh-Hans zh-Hant he sk)
+
+  # To update the list, run in root directory:
+  # sed -nEe "s/ +([a-zA-Z]{2}(-[a-zA-Z]{2,})?) = .*$/\1/p" "data/strings/strings.txt" | sort -u | tr '\n' ' ' | sed -e 's/,$//' | fold -s -w48; echo
+  LANGUAGES = %w(af ar be bg ca cs da de el en en-GB es es-MX et
+                 eu fa fi fr fr-CA he hi hu id it ja ko lt mr nb
+                 nl pl pt pt-BR ro ru sk sv sw th tr uk vi
+                 zh-Hans zh-Hant)
 
   class AbstractParser
     def initialize(keys)