diff --git a/core/resources/pix/icons/pencil.png b/core/resources/pix/icons/pencil.png
deleted file mode 100644
index 5b8cc893d..000000000
Binary files a/core/resources/pix/icons/pencil.png and /dev/null differ
diff --git a/swing/src/net/sf/openrocket/gui/customexpression/CustomExpressionPanel.java b/swing/src/net/sf/openrocket/gui/customexpression/CustomExpressionPanel.java
index a26222798..d828c2ebf 100644
--- a/swing/src/net/sf/openrocket/gui/customexpression/CustomExpressionPanel.java
+++ b/swing/src/net/sf/openrocket/gui/customexpression/CustomExpressionPanel.java
@@ -197,7 +197,7 @@ public class CustomExpressionPanel extends JPanel {
 			//unitSelector = setLabelStyle(unitSelector);
 			//unitSelector.setBackground(Color.WHITE);
 			
-			JButton editButton = new SelectColorButton(Icons.EDIT);
+			JButton editButton = new SelectColorButton(Icons.EDIT_EDIT);
 			editButton.setToolTipText(trans.get("customExpression.Units.but.ttip.Edit"));
 			editButton.setBorderPainted(false);
 			editButton.addActionListener(new ActionListener() {
@@ -234,7 +234,7 @@ public class CustomExpressionPanel extends JPanel {
 			});
 			
 			
-			JButton deleteButton = new SelectColorButton(Icons.DELETE);
+			JButton deleteButton = new SelectColorButton(Icons.EDIT_DELETE);
 			//// Remove this expression
 			deleteButton.setToolTipText(trans.get("customExpression.Units.but.ttip.Remove"));
 			deleteButton.setBorderPainted(false);