diff --git a/Utils/known-sets.txt b/Utils/known-sets.txt
index 8930efa5479..dc8d45e3793 100644
--- a/Utils/known-sets.txt
+++ b/Utils/known-sets.txt
@@ -160,6 +160,7 @@ Premium Deck Series: Fire and Lightning|PremiumDeckSeriesFireAndLightning|
 Premium Deck Series: Slivers|PremiumDeckSeriesSlivers|
 Prerelease Events|PrereleaseEvents|
 Prophecy|Prophecy|
+Ravnica Allegiance|RavnicaAllegiance|
 Ravnica: City of Guilds|RavnicaCityOfGuilds|
 Return to Ravnica|ReturnToRavnica|
 Revised Edition|RevisedEdition|
diff --git a/Utils/mtg-sets-data.txt b/Utils/mtg-sets-data.txt
index 797a5ba7722..60d08073cfb 100644
--- a/Utils/mtg-sets-data.txt
+++ b/Utils/mtg-sets-data.txt
@@ -165,6 +165,7 @@ Planeshift|PLS|
 Portal|POR|
 Prerelease Events|PTC|
 Portal Three Kingdoms|PTK|
+Ravnica Allegiance|RNA|
 Ravnica: City of Guilds|RAV|
 Rivals of Ixalan|RIX|
 Rise of the Eldrazi|ROE|