diff --git a/lib/Minilisp.pm b/lib/Minilisp.pm
index 795518b..70e16b4 100644
--- a/lib/Minilisp.pm
+++ b/lib/Minilisp.pm
@@ -366,7 +366,7 @@ sub parser_expr {
       return sub {
         my $ctx = shift;
         my $name = $tok->{value};
-        die "Undefined idnetifier $name" unless
+        die "Undefined identifier $name" unless
           exists $ctx->{$name};
         return $ctx->{$name};
       }