diff --git a/include/lang/da.rem b/include/lang/da.rem
index c737dce5..43855935 100644
--- a/include/lang/da.rem
+++ b/include/lang/da.rem
@@ -1,7 +1,7 @@
 # Support for the Danish language.
 # This file is part of REMIND.
 # REMIND is Copyright (C) 1992-2022 by Dianne Skoll
-# This file is derived from a translation by by Mogens Lynnerup.
+# This file is derived from a translation by Mogens Lynnerup.
 
 SET $Sunday "Søndag"
 SET $Monday "Mandag"
diff --git a/include/lang/de.rem b/include/lang/de.rem
index 17b2089f..d35f9eef 100644
--- a/include/lang/de.rem
+++ b/include/lang/de.rem
@@ -1,4 +1,7 @@
-# German language file for Remind
+# Support for the German language.
+# This file is part of REMIND.
+# REMIND is Copyright (C) 1992-2022 by Dianne Skoll
+# This file is derived from a translation by Wolfgang Thronicke
 
 # Day names
 SET $Sunday "Sonntag"
diff --git a/include/lang/fr.rem b/include/lang/fr.rem
index b00bad71..eb53fcdc 100644
--- a/include/lang/fr.rem
+++ b/include/lang/fr.rem
@@ -1,4 +1,7 @@
-# French language file for Remind
+# Support for the French language.
+# This file is part of REMIND.
+# REMIND is Copyright (C) 1992-2022 by Dianne Skoll
+# This file is derived from a translation by Laurent Duperval
 
 SET $Sunday "dimanche"
 SET $Monday "lundi"