diff --git a/bl-languages/cs_CZ.json b/bl-languages/cs_CZ.json
index aa41d752..c06f58b0 100644
--- a/bl-languages/cs_CZ.json
+++ b/bl-languages/cs_CZ.json
@@ -30,6 +30,7 @@
         "Feb": "úno",
         "Mar": "bře",
         "Apr": "dub",
+        "May": "kvet",	    
         "Jun": "čen",
         "Jul": "čec",
         "Aug": "srp",