diff --git a/chart/__init__.py b/chart/__init__.py
index e69de29..91f24c6 100644
--- a/chart/__init__.py
+++ b/chart/__init__.py
@@ -0,0 +1,9 @@
+# Patch MARKER constant
+
+import sys
+from GChartWrapper import constants
+import GChartWrapper.GChart
+
+constants.MARKERS += 'E'
+print sys.modules['GChartWrapper.GChart']
+sys.modules['GChartWrapper.GChart'].MARKERS += 'E'