diff --git a/internal/schema/stacks/1.9/orchestrate_block.go b/internal/schema/stacks/1.9/orchestrate_block.go
index 4af6629..e60984b 100644
--- a/internal/schema/stacks/1.9/orchestrate_block.go
+++ b/internal/schema/stacks/1.9/orchestrate_block.go
@@ -47,6 +47,13 @@ func orchestrateBlockSchema() *schema.BlockSchema {
 					},
 				},
 			},
+			Attributes: map[string]*schema.AttributeSchema{
+				"description": {
+					Constraint:  schema.LiteralType{Type: cty.String},
+					IsOptional:  true,
+					Description: lang.PlainText("Human-readable description of the orchestration rule (for documentation and UI)"),
+				},
+			},
 		},
 	}
 }