diff --git a/type-graph.txt b/type-graph.txt
index 3d79f2a59..9c6ed3f14 100644
--- a/type-graph.txt
+++ b/type-graph.txt
@@ -254,8 +254,8 @@ class X::Comp::NYI                  is X::NYI      does X::Comp
 
 class X::Signature::Placeholder                    does X::Comp
 class X::Placeholder::Block                        does X::Comp
-class X::Placeholder::Mainline                     does X::Comp
-class X::Attribute::Undeclared                     does X::Comp
+class X::Placeholder::Mainline      is X::Placeholder::Block
+class X::Attribute::Undeclared      is X::Undeclared
 class X::Redeclaration                             does X::Comp
 class X::Undeclared                                does X::Comp
 class X::Phaser::Multiple                          does X::Comp