diff --git a/modules/ve-math/ve.ce.MWChemNode.js b/modules/ve-math/ve.ce.MWChemNode.js
index e78a48c..9edfedd 100644
--- a/modules/ve-math/ve.ce.MWChemNode.js
+++ b/modules/ve-math/ve.ce.MWChemNode.js
@@ -30,6 +30,8 @@ ve.ce.MWChemNode.static.name = 'mwChem';
 
 ve.ce.MWChemNode.static.primaryCommandName = 'chemDialog';
 
+ve.ce.MWChemNode.static.iconWhenInvisible = 'chem';
+
 /* Registration */
 
 ve.ce.nodeFactory.register( ve.ce.MWChemNode );
diff --git a/modules/ve-math/ve.ce.MWMathNode.js b/modules/ve-math/ve.ce.MWMathNode.js
index 2bbe294..ac859e0 100644
--- a/modules/ve-math/ve.ce.MWMathNode.js
+++ b/modules/ve-math/ve.ce.MWMathNode.js
@@ -30,6 +30,8 @@ ve.ce.MWMathNode.static.name = 'mwMath';
 
 ve.ce.MWMathNode.static.primaryCommandName = 'mathDialog';
 
+ve.ce.MWMathNode.static.iconWhenInvisible = 'math';
+
 /* Registration */
 
 ve.ce.nodeFactory.register( ve.ce.MWMathNode );