diff --git a/tools/make-opera.sh b/tools/make-opera.sh
index a04bd0a98..b778753b5 100755
--- a/tools/make-opera.sh
+++ b/tools/make-opera.sh
@@ -24,11 +24,14 @@ cp platform/chromium/*.json $DES/
 cp LICENSE.txt              $DES/
 
 echo "*** uBlock0.opera: concatenating content scripts"
-cat $DES/js/vapi-usercss.js > /tmp/contentscript.js
+cat $DES/js/vapi-usercss.pseudo.js > /tmp/contentscript.js
+echo >> /tmp/contentscript.js
+grep -v "^'use strict';$" $DES/js/vapi-usercss.real.js >> /tmp/contentscript.js
 echo >> /tmp/contentscript.js
 grep -v "^'use strict';$" $DES/js/contentscript.js >> /tmp/contentscript.js
 mv /tmp/contentscript.js $DES/js/contentscript.js
-rm $DES/js/vapi-usercss.js
+rm $DES/js/vapi-usercss.pseudo.js
+rm $DES/js/vapi-usercss.real.js
 
 # Opera-specific
 cp platform/opera/manifest.json $DES/