diff --git a/spacy/lang/ga/tokenizer_exceptions.py b/spacy/lang/ga/tokenizer_exceptions.py
index afd901e33..2f6d1ebdf 100644
--- a/spacy/lang/ga/tokenizer_exceptions.py
+++ b/spacy/lang/ga/tokenizer_exceptions.py
@@ -45,9 +45,12 @@ for exc_data in [
     {ORTH: "M.Fómh.", LEMMA: "Meán Fómhair", POS: NOUN},
     {ORTH: "D.F.", LEMMA: "Deireadh Fómhair", POS: NOUN},
     {ORTH: "D.Fómh.", LEMMA: "Deireadh Fómhair", POS: NOUN},
+    {ORTH: "r.C.", LEMMA: "roimh Chríost", POS: ADV},
     {ORTH: "R.C.", LEMMA: "roimh Chríost", POS: ADV},
     {ORTH: "r.Ch.", LEMMA: "roimh Chríost", POS: ADV},
     {ORTH: "r.Chr.", LEMMA: "roimh Chríost", POS: ADV},
+    {ORTH: "R.Ch.", LEMMA: "roimh Chríost", POS: ADV},
+    {ORTH: "R.Chr.", LEMMA: "roimh Chríost", POS: ADV},
     {ORTH: "⁊rl.", LEMMA: "agus araile", POS: ADV},
     {ORTH: "srl.", LEMMA: "agus araile", POS: ADV},
     {ORTH: "Co.", LEMMA: "contae", POS: NOUN},