diff --git a/etesian/src/EtesianEngine.cpp b/etesian/src/EtesianEngine.cpp
index 5941c1ea..4bc56b9e 100644
--- a/etesian/src/EtesianEngine.cpp
+++ b/etesian/src/EtesianEngine.cpp
@@ -179,7 +179,7 @@ namespace {
         break;
       case CellOrientation::MX:
         orient = Transformation::Orientation::MX;
-        ty    +=   cellBox.getWidth();
+        tx    +=   cellBox.getWidth();
         break;
       /*
       case CellOrientation::R90: