diff --git a/calc/bundle b/calc/bundle
index bfdc984b1..10e8dc4c0 100755
--- a/calc/bundle
+++ b/calc/bundle
@@ -86,7 +86,7 @@ var gen12_1 = exports;
 var gen3_1 = exports;
 var gen4_1 = exports;
 var gen56_1 = exports;
-var gen78_1 = exports;
+var gen789_1 = exports;
 `;
 bundled += bundler.read('calc.js', 9, 1);
 
@@ -104,4 +104,4 @@ window.calc = Object.assign(window.calc || {}, {
   Stats: exports.Stats,
 });
 })();`
-bundler.bundle(bundled);
\ No newline at end of file
+bundler.bundle(bundled);