diff --git a/ChangeLog b/ChangeLog
index 11a9b8d98e..32b9cbfbe2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2018-10-09  Rafal Luzynski  <digitalfreak@lingonborough.com>
+
+	[BZ #20209]
+	* localedata/locales/kl_GL: (abday): Fix spelling of Sun (Sunday),
+	should be "sap" rather than "sab".
+	(day): Fix spelling of Sunday, should be "sapaat" rather than
+	"sabaat".
+
 2018-09-28  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
 
 	[BZ #23579]
diff --git a/NEWS b/NEWS
index fd14941128..594cecfc75 100644
--- a/NEWS
+++ b/NEWS
@@ -9,6 +9,7 @@ Version 2.28.1
 
 The following bugs are resolved with this release:
 
+  [20209] localedata: Spelling mistake for Sunday in Greenlandic kl_GL
   [23497] readdir64@GLIBC_2.1 cannot parse the kernel directory stream
   [23521] nss_files aliases database file stream leak
   [23538] pthread_cond_broadcast: Fix waiters-after-spinning case
diff --git a/localedata/locales/kl_GL b/localedata/locales/kl_GL
index 5ab14a31aa..5723ce7dcf 100644
--- a/localedata/locales/kl_GL
+++ b/localedata/locales/kl_GL
@@ -70,11 +70,11 @@ copy "da_DK"
 END LC_NUMERIC
 
 LC_TIME
-abday    "sab";"ata";/
+abday    "sap";"ata";/
          "mar";"pin";/
          "sis";"tal";/
          "arf"
-day      "sabaat";/
+day      "sapaat";/
          "ataasinngorneq";/
          "marlunngorneq";/
          "pingasunngorneq";/