diff --git a/Contrib/Modern UI/System.nsh b/Contrib/Modern UI/System.nsh
index 2844976a..e8acb7f9 100644
--- a/Contrib/Modern UI/System.nsh	
+++ b/Contrib/Modern UI/System.nsh	
@@ -2048,7 +2048,9 @@ Var MUI_TEMP2
 
 !macro MUI_INSERT
   
-  !insertmacro MUI_NSISCONF
+  !ifdef MUI_INSERT_NSISCONF
+    !insertmacro MUI_NSISCONF
+  !endif
   
   !ifdef MUI_PRODUCT | MUI_VERSION
     !warning "The MUI_PRODUCT and MUI_VERSION defines have been removed. Use a normal Name command now."
diff --git a/nsisconf.nsh b/nsisconf.nsh
index 12eede50..a550fd7a 100644
--- a/nsisconf.nsh
+++ b/nsisconf.nsh
@@ -48,6 +48,8 @@
 
 ;------------------------
 
+!define MUI_INSERT_NSISCONF
+
 !macro MUI_NSISCONF
 
   ;Example: Change the default Modern UI icons