diff --git a/src/readme.graph.md b/src/readme.graph.md
index c62420e859..5dcbad6657 100644
--- a/src/readme.graph.md
+++ b/src/readme.graph.md
@@ -207,6 +207,10 @@ directive:
       subject: ^(\w*[a-z])GraphOPre(\w*)$
     set:
       subject: $1Of$2
+  - where:
+      subject: ^(\w*[a-z])GraphRPre(\w*)$
+    set:
+      subject: $1Or$2
   - where:
       verb: Clear
       subject: ^UserManagedAppRegistrationByDeviceTag$
diff --git a/tools/TweakOpenApi.ps1 b/tools/TweakOpenApi.ps1
index d77422e5e4..309ba7996b 100644
--- a/tools/TweakOpenApi.ps1
+++ b/tools/TweakOpenApi.ps1
@@ -16,6 +16,7 @@ $prepositionReplacements = @{
     At   = "GraphAPre"
     For  = "GraphFPre"
     Of   = "GraphOPre"
+    Or   = "GraphRPre"
 }
 
 $wordReplacements = @{