diff --git a/src/lookahead.rs b/src/lookahead.rs
index 5a3c901..1f2b223 100644
--- a/src/lookahead.rs
+++ b/src/lookahead.rs
@@ -122,6 +122,10 @@
                 let message = format!("expected {}", comparisons[0]);
                 error::new_at(self.scope, self.cursor, message)
             }
+            2 => {
+                let message = format!("expected {} or {}", comparisons[0], comparisons[1]);
+                error::new_at(self.scope, self.cursor, message)
+            }
             _ => {
                 let join = comparisons.join(", ");
                 let message = format!("expected one of: {}", join);