diff --git a/l10n/cy_GB.js b/l10n/cy_GB.js
index 1de29ef3e..3cf1607de 100644
--- a/l10n/cy_GB.js
+++ b/l10n/cy_GB.js
@@ -20,11 +20,14 @@ OC.L10N.register(
     "Modified" : "Addaswyd",
     "Select Date" : "Dewis Dyddiad",
     "Today" : "Heddiw",
+    "Next week" : "Wythnos nesaf",
+    "Next month" : "Mis nesaf",
     "Save" : "Cadw",
     "Update" : "Diweddaru",
     "Description" : "Disgrifiad",
     "seconds ago" : "eiliad yn ôl",
     "Shared with you" : "Shared with you",
+    "No reminder" : "Dim nodyn atgoffa",
     "An error occurred" : "Digwyddodd gwall",
     "Share" : "Rhannu",
     "This week" : "Wythnos yma"
diff --git a/l10n/cy_GB.json b/l10n/cy_GB.json
index c40122590..8dfa90a3e 100644
--- a/l10n/cy_GB.json
+++ b/l10n/cy_GB.json
@@ -18,11 +18,14 @@
     "Modified" : "Addaswyd",
     "Select Date" : "Dewis Dyddiad",
     "Today" : "Heddiw",
+    "Next week" : "Wythnos nesaf",
+    "Next month" : "Mis nesaf",
     "Save" : "Cadw",
     "Update" : "Diweddaru",
     "Description" : "Disgrifiad",
     "seconds ago" : "eiliad yn ôl",
     "Shared with you" : "Shared with you",
+    "No reminder" : "Dim nodyn atgoffa",
     "An error occurred" : "Digwyddodd gwall",
     "Share" : "Rhannu",
     "This week" : "Wythnos yma"