diff --git a/Casks/visual-paradigm-ce.rb b/Casks/visual-paradigm-ce.rb
index 8299c0529..79050ae7d 100644
--- a/Casks/visual-paradigm-ce.rb
+++ b/Casks/visual-paradigm-ce.rb
@@ -6,7 +6,7 @@ cask 'visual-paradigm-ce' do
   name 'Visual Paradigm'
   homepage 'https://www.visual-paradigm.com/'
 
-  installer script: "Visual Paradigm CE.app/Contents/MacOS/JavaApplicationStub",
+  installer script: 'Visual Paradigm CE.app/Contents/MacOS/JavaApplicationStub',
             args:   ['-q'],
             sudo:   false