diff --git a/crates/aiken-project/src/blueprint/error.rs b/crates/aiken-project/src/blueprint/error.rs
index d440b18c..af173f26 100644
--- a/crates/aiken-project/src/blueprint/error.rs
+++ b/crates/aiken-project/src/blueprint/error.rs
@@ -37,8 +37,11 @@ pub enum Error {
     )]
     #[diagnostic(code("aiken::blueprint::address::parameterized"))]
     #[diagnostic(help(
-        "I can only compute addresses of validators that are fully applied. For example, a {keyword_spend} validator must have exactly 3 arguments: a datum, a redeemer and a context. If it has more, they need to be provided beforehand and applied directly in the validator. Applying parameters change the validator's compiled code, and thus the address.\n\nThis is why I need you to apply parameters first.",
-        keyword_spend = "spend".if_supports_color(Stdout, |s| s.purple())))]
+        "I can only compute addresses of validators that are fully applied. For example, a {keyword_spend} validator must have exactly {spend_arity} arguments: a datum, a redeemer and a context. If it has more, they need to be provided beforehand and applied directly to the validator.\n\nApplying parameters change the validator's compiled code, and thus the address. This is why I need you to apply parameters first using the {blueprint_apply_command} command.",
+        keyword_spend = "spend".if_supports_color(Stdout, |s| s.yellow()),
+        spend_arity = "3".if_supports_color(Stdout, |s| s.yellow()),
+        blueprint_apply_command = "blueprint apply".if_supports_color(Stdout, |s| s.purple()),
+    ))]
     ParameterizedValidator { n: usize },
 }