diff --git a/include/Math-Expression-Evaluator b/include/Math-Expression-Evaluator
index 54afe35..12d9942 160000
--- a/include/Math-Expression-Evaluator
+++ b/include/Math-Expression-Evaluator
@@ -1 +1 @@
-Subproject commit 54afe3599a1a3286fbe97f3d840169bb36f506f1
+Subproject commit 12d9942626a9c5fcde2f38f93cc51c7a9f56d9c8