diff --git a/benchmarks/nu-lib/fri/plot.nu b/benchmarks/nu-lib/fri/plot.nu
index 7eb2287e7f0394d30ae99c8eb95925208998635f..eba787a6ce0fd9917c327f62d471960ffe6c4ec8 100644
--- a/benchmarks/nu-lib/fri/plot.nu
+++ b/benchmarks/nu-lib/fri/plot.nu
@@ -88,7 +88,7 @@ export def main [
     --dump-dir: path = "./",
 ] {
     if ($x | is-empty) {
-        error make --unspanned { msg: "nothing to do" }
+        error make --unspanned { msg: "nothing to do, x is empty" }
     }
     if $file == null {
         error make --unspanned { msg: "missing --file" }