diff --git a/installer/data/mysql/atomicupdate/bug_22770_fix_language_description.perl b/installer/data/mysql/atomicupdate/bug_22770_fix_language_description.perl
new file mode 100644
index 0000000000..5a0d8e687c
--- /dev/null
+++ b/installer/data/mysql/atomicupdate/bug_22770_fix_language_description.perl
@@ -0,0 +1,7 @@
+$DBversion = 'XXX'; # will be replaced by the RM
+if( CheckVersion( $DBversion ) ) {
+    $dbh->do( 'UPDATE language_descriptions SET description = "Griechisch (Modern 1453-)"
+      WHERE subtag = "el" and type = "language" and lang ="de"' );
+    SetVersion( $DBversion );
+    print "Upgrade to $DBversion done (Bug 22770 - Fix typo in language description for el in German)\n";
+}
diff --git a/installer/data/mysql/mandatory/subtag_registry.sql b/installer/data/mysql/mandatory/subtag_registry.sql
index a815a616c4..2799a44259 100755
--- a/installer/data/mysql/mandatory/subtag_registry.sql
+++ b/installer/data/mysql/mandatory/subtag_registry.sql
@@ -239,7 +239,7 @@ INSERT INTO language_descriptions(subtag, type, lang, description)
 VALUES ( 'el', 'language', 'fr', 'Grec Moderne (Après 1453)');
 
 INSERT INTO language_descriptions(subtag, type, lang, description)
-VALUES ( 'el', 'language', 'de', 'Griechisch (Moern [1453- ]');
+VALUES ( 'el', 'language', 'de', 'Griechisch (Modern 1453-)');
 
 -- English
 INSERT INTO language_subtag_registry( subtag, type, description, added)