1 files changed, 1 insertions, 0 deletions
diff --git a/src/js_printer.zig b/src/js_printer.zig
index d81499a36..f0ea20c34 100644
--- a/src/js_printer.zig
+++ b/src/js_printer.zig
@@ -981,6 +981,7 @@ fn NewPrinter(
                     p.print("void 0");
                 }
             } else {
+                p.printSpaceBeforeIdentifier();
                 p.addSourceMapping(loc);
                 p.print("undefined");
             }