diff --git a/install/ui/skineditor.fbp b/install/ui/skineditor.fbp
index 26e7ddde4..c9c8ea019 100644
--- a/install/ui/skineditor.fbp
+++ b/install/ui/skineditor.fbp
@@ -1498,7 +1498,7 @@
                                                                                 <property name="resize">Resizable</property>
                                                                                 <property name="show">1</property>
                                                                                 <property name="size"></property>
-                                                                                <property name="style"></property>
+                                                                                <property name="style">wxTE_READONLY</property>
                                                                                 <property name="subclass">; ; forward_declare</property>
                                                                                 <property name="toolbar_pane">0</property>
                                                                                 <property name="tooltip"></property>
@@ -1921,7 +1921,7 @@
                                                                                 <property name="resize">Resizable</property>
                                                                                 <property name="show">1</property>
                                                                                 <property name="size"></property>
-                                                                                <property name="style"></property>
+                                                                                <property name="style">wxTE_READONLY</property>
                                                                                 <property name="subclass">; ; forward_declare</property>
                                                                                 <property name="toolbar_pane">0</property>
                                                                                 <property name="tooltip"></property>
diff --git a/install/ui/skineditor.xrc b/install/ui/skineditor.xrc
index 2f11e2190..4904819a5 100644
--- a/install/ui/skineditor.xrc
+++ b/install/ui/skineditor.xrc
@@ -305,6 +305,7 @@
 																	<flag>wxEXPAND|wxRIGHT|wxTOP</flag>
 																	<border>6</border>
 																	<object class="wxTextCtrl" name="SourceMaterialEdit">
+																		<style>wxTE_READONLY</style>
 																		<value></value>
 																	</object>
 																</object>
@@ -372,6 +373,7 @@
 																	<flag>wxEXPAND|wxRIGHT|wxTOP</flag>
 																	<border>6</border>
 																	<object class="wxTextCtrl" name="ReplacementMaterialEdit">
+																		<style>wxTE_READONLY</style>
 																		<value></value>
 																	</object>
 																</object>