diff --git a/apiary.apib b/apiary.apib
index 6d00223f..1aef7fa0 100644
--- a/apiary.apib
+++ b/apiary.apib
@@ -8151,7 +8151,7 @@ Get a list of files.
             + (object)
                 + id: `a856642a-a476-4b69-8e42-e7d1badb2ce9` (string)
                 + subject (object, nullable)
-                    + `type`: `company` (enum[string], required)
+                    + `type`: `company` (enum[string])
                         + Members
                             + company
                             + contact
@@ -8183,7 +8183,7 @@ Get details for a single file.
         + data (object)
             + id: `a856642a-a476-4b69-8e42-e7d1badb2ce9` (string)
             + subject (object, nullable)
-                + `type`: `company` (enum[string], required)
+                + `type`: `company` (enum[string])
                     + Members
                         + company
                         + contact
diff --git a/src/10-files/files.apib b/src/10-files/files.apib
index b001f2dc..2afedfa8 100644
--- a/src/10-files/files.apib
+++ b/src/10-files/files.apib
@@ -47,7 +47,7 @@ Get a list of files.
             + (object)
                 + id: `a856642a-a476-4b69-8e42-e7d1badb2ce9` (string)
                 + subject (object, nullable)
-                    + `type`: `company` (enum[string], required)
+                    + `type`: `company` (enum[string])
                         + Members
                             + company
                             + contact
@@ -79,7 +79,7 @@ Get details for a single file.
         + data (object)
             + id: `a856642a-a476-4b69-8e42-e7d1badb2ce9` (string)
             + subject (object, nullable)
-                + `type`: `company` (enum[string], required)
+                + `type`: `company` (enum[string])
                     + Members
                         + company
                         + contact