diff --git a/spacy/lang/lt/punctuation.py b/spacy/lang/lt/punctuation.py
index 506aa8f32..22aee0941 100644
--- a/spacy/lang/lt/punctuation.py
+++ b/spacy/lang/lt/punctuation.py
@@ -19,7 +19,7 @@ _infixes = (
 )
 
 
-_suffixes = ["\."] + list(TOKENIZER_SUFFIXES)
+_suffixes = [r"\."] + list(TOKENIZER_SUFFIXES)
 
 
 TOKENIZER_INFIXES = _infixes