diff --git a/cardano-api/src/Cardano/Api.hs b/cardano-api/src/Cardano/Api.hs
index 2c61af281a..1f7600e2d6 100644
--- a/cardano-api/src/Cardano/Api.hs
+++ b/cardano-api/src/Cardano/Api.hs
@@ -99,6 +99,7 @@ module Cardano.Api (
     shelleyBasedEraConstraints,
 
     -- ** From Allegra
+    AllegraEraOnwards(..),
 
     -- ** From Mary
     MaryEraOnwards(..),
@@ -992,6 +993,7 @@ import           Cardano.Api.Convenience.Construction
 import           Cardano.Api.Convenience.Query
 import           Cardano.Api.DeserialiseAnyOf
 import           Cardano.Api.DRepMetadata
+import           Cardano.Api.Eon.AllegraEraOnwards
 import           Cardano.Api.Eon.AlonzoEraOnwards
 import           Cardano.Api.Eon.BabbageEraOnwards
 import           Cardano.Api.Eon.ByronEraOnly