diff --git a/proto-docs/session.md b/proto-docs/session.md
index 40088d1..699a907 100644
--- a/proto-docs/session.md
+++ b/proto-docs/session.md
@@ -338,6 +338,7 @@ Object request verbs
 | DELETE | 5 | Refers to object.Delete RPC call |
 | RANGE | 6 | Refers to object.GetRange RPC call |
 | RANGEHASH | 7 | Refers to object.GetRangeHash RPC call |
+| PATCH | 8 | Refers to object.Patch RPC call |
 
 
  <!-- end enums -->
diff --git a/session/types.proto b/session/types.proto
index a878665..e039081 100644
--- a/session/types.proto
+++ b/session/types.proto
@@ -36,6 +36,9 @@ message ObjectSessionContext {
 
     // Refers to object.GetRangeHash RPC call
     RANGEHASH = 7;
+
+    // Refers to object.Patch RPC call
+    PATCH = 8;
   }
   // Type of request for which the token is issued
   Verb verb = 1 [ json_name = "verb" ];