diff --git a/modules/mesh-config/cmd/mesh-config/resolve.go b/modules/mesh-config/cmd/mesh-config/resolve.go
index ccf35335..b57bf3dc 100644
--- a/modules/mesh-config/cmd/mesh-config/resolve.go
+++ b/modules/mesh-config/cmd/mesh-config/resolve.go
@@ -21,9 +21,9 @@ const (
 	ProposalsState  = "proposals"
 
 	AssignmentsRead = "mesh-controller.assignments"
-	// PlacementRead is the indexer's placement, read from the catalogue at each merge (novox/hq ADR 0549 §2, §3): each
+	// PlacementRead is the seat mesh-placement's state, held by the assigner (novox/hq ADR 0567 §1, §8): each
 	// node's key `placement.<node>` with the modules placed there.
-	PlacementRead      = "mesh-delivery-indexer.placement"
+	PlacementRead      = "mesh-delivery-assigner.placement"
 	DeclaredConfigRead = "mesh-controller.declared-config"
 	PredefinedRead     = "mesh-controller.predefined"
 
diff --git a/modules/mesh-config/cmd/mesh-config/sources.go b/modules/mesh-config/cmd/mesh-config/sources.go
index 36adb3c8..6cd7e88d 100644
--- a/modules/mesh-config/cmd/mesh-config/sources.go
+++ b/modules/mesh-config/cmd/mesh-config/sources.go
@@ -27,9 +27,9 @@ func (c *Config) sources() (Sources, error) {
 	}); err != nil {
 		return s, fmt.Errorf("the assignments cannot be read: %w", err)
 	}
-	// And every module the catalog's placement names on a node (ADR 0549 §3): until ADR 0547's third milestone both
+	// And every module the seat's placement names on a node (ADR 0549 §3): until ADR 0547's third milestone both
 	// sources stand (ADR 0549 §5), so a pair either names is resolved, and none loses its values while the two differ.
-	// Placement that cannot be read yet (the indexer's state not on the bus) leaves the assignments alone, said.
+	// Placement that cannot be read yet (the seat's state not on the bus) leaves the assignments alone, said.
 	standing := map[string]bool{}
 	for _, a := range s.Assignments {
 		standing[a.Node+"."+a.Module] = true
@@ -57,7 +57,7 @@ func (c *Config) sources() (Sources, error) {
 		}
 		return nil
 	}); err != nil {
-		problems = append(problems, fmt.Sprintf("the catalog's placement cannot be read, so the assignments alone are resolved: %v", err))
+		problems = append(problems, fmt.Sprintf("the seat's placement cannot be read, so the assignments alone are resolved: %v", err))
 	}
 	if err := c.each(DeclaredConfigRead, func(key string, raw []byte) error {
 		m, err := ParseModuleDeclarations(raw)
diff --git a/modules/mesh-config/module.json b/modules/mesh-config/module.json
index d6b5bdd0..ca7e0a2f 100644
--- a/modules/mesh-config/module.json
+++ b/modules/mesh-config/module.json
@@ -29,7 +29,7 @@
   ],
   "reads": [
     "mesh-controller.assignments",
-    "mesh-delivery-indexer.placement",
+    "mesh-delivery-assigner.placement",
     "mesh-controller.declared-config",
     "mesh-controller.predefined"
   ],