diff --git a/crates/compilation/src/lib.rs b/crates/compilation/src/lib.rs
index fc3c728..5f7b8a8 100644
--- a/crates/compilation/src/lib.rs
+++ b/crates/compilation/src/lib.rs
@@ -83,7 +83,7 @@ fn generate_for_macro<'ast, 'src>(
                     )?;
                 }
                 _ => Err(format!(
-                    "Compilation not yet implemented for this invocation type {:?}",
+                    "Compilation not yet implemented for this invocation type `{:?}`",
                     invoke
                 ))?,
             },
diff --git a/examples/errors/CompileError.huff b/examples/errors/CompileError.huff
index 047c7b4..e8d750d 100644
--- a/examples/errors/CompileError.huff
+++ b/examples/errors/CompileError.huff
@@ -1,7 +1,8 @@
 #define constant WOW = 0x123
+#define error NotSoNice()
 
 #define macro MAIN() = takes(0) returns(0) {
-    __codesize(NICE)
+    __FUNC_SIG(NotSoNice)
     [WOW]
 }