diff --git a/MPLColorMap.m b/MPLColorMap.m
index f06530d..c63b3ad 100644
--- a/MPLColorMap.m
+++ b/MPLColorMap.m
@@ -17,7 +17,7 @@
  *	https://github.com/pnnl/cmaputil
  *
 *)
-
+MPLColorMap = Association[];
 MPLColorMap["Magma"] = Blend[Map[RGBColor, {
 	{0.001462, 0.000466, 0.013866},
 	{0.002258, 0.001295, 0.018331},