diff --git a/app/models/user.rb b/app/models/user.rb
index ec3cc3fc5..e97d01a7c 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -444,7 +444,7 @@ class User < Principal
 
   # Return true if the user is a member of project
   def member_of?(project)
-    !roles_for_project(project).detect {|role| role.member?}.nil?
+    roles_for_project(project).any? {|role| role.member?}
   end
 
   # Returns a hash of user's projects grouped by roles