diff --git a/core/src/Datarekisteri/Core/Types.hs b/core/src/Datarekisteri/Core/Types.hs
index 5d04874..885e4e8 100644
--- a/core/src/Datarekisteri/Core/Types.hs
+++ b/core/src/Datarekisteri/Core/Types.hs
@@ -83,7 +83,18 @@ data Scope = OwnProfile
            | Tokens UserID
            | Members
            | Applications
-           deriving (Show, Eq, Ord, Read)
+           deriving (Show, Eq, Ord, Read, Generic)
+
+instance DecodeScalar Scope where
+    decodeScalar (String s) = maybe (Left $ "invalid Scope: \"" <> s <> "\"") Right $ readMaybe (toString s)
+    decodeScalar _ = Left "Invalid type for Scope, should be string"
+
+instance EncodeScalar Scope where
+    encodeScalar = String . show
+
+instance GQLType Scope where type KIND Scope = SCALAR
+instance ToJSON Scope where toJSON = scalarToJSON
+instance FromJSON Scope where parseJSON = scalarFromJSON <=< parseJSON
 
 data Permission = None
                 | ReadOnly