diff --git a/doc/site/embedding/configuring-the-vm.markdown b/doc/site/embedding/configuring-the-vm.markdown
index 3c2b9a12..e8f6de49 100644
--- a/doc/site/embedding/configuring-the-vm.markdown
+++ b/doc/site/embedding/configuring-the-vm.markdown
@@ -102,6 +102,7 @@ is:
 
     :::c
     void error(
+          WrenVM* vm, 
           WrenErrorType type,
           const char* module,
           int line,