diff --git a/schema/cryptography-defs.json b/schema/cryptography-defs.json
index 2d1a7f19..0f065ba3 100644
--- a/schema/cryptography-defs.json
+++ b/schema/cryptography-defs.json
@@ -80,7 +80,7 @@
       ],
       "variant": [
         {
-          "pattern": "Ed(25519|448)[-(ph|ctx)]",
+          "pattern": "Ed(25519|448)[(ph|ctx)]",
           "primitive": "signature"
         }
       ]