diff --git a/lazproj/coedit.lpi b/lazproj/coedit.lpi
index 90b8d9ef..79af8a35 100644
--- a/lazproj/coedit.lpi
+++ b/lazproj/coedit.lpi
@@ -591,7 +591,12 @@
       <CompilerMessages>
         <IgnoredMessages idx5024="True"/>
       </CompilerMessages>
-      <CustomOptions Value="-dRELEASE"/>
+      <CustomOptions Value="-dRELEASE
+-dGTK_REMOVE_CLIPBOARD_NULL"/>
+      <OtherDefines Count="2">
+        <Define0 Value="RELEASE"/>
+        <Define1 Value="GTK_REMOVE_CLIPBOARD_NULL"/>
+      </OtherDefines>
     </Other>
   </CompilerOptions>
   <Debugging>