diff --git a/lib/parse.js b/lib/parse.js
index 01fbb88f..5a75e753 100644
--- a/lib/parse.js
+++ b/lib/parse.js
@@ -1358,7 +1358,7 @@ function parse($TEXT, options) {
                     left     : left,
                     operator : val,
                     right    : maybe_assign(no_in),
-                    end      : peek()
+                    end      : prev()
                 });
             }
             croak("Invalid assignment");