diff --git a/lib/rspec-api/respond_with/request.rb b/lib/rspec-api/respond_with/request.rb
index <HASH>..<HASH> 100644
--- a/lib/rspec-api/respond_with/request.rb
+++ b/lib/rspec-api/respond_with/request.rb
@@ -33,7 +33,7 @@ module RSpecApi
 
       def expectations_for(status, params)
         keys = [:collection, :attributes, :sort, :filter, :page_links, :callback]
-        params.slice(*keys).delete_if{|k, v| v.blank?}.tap do |expectations|
+        params.slice(*keys).delete_if{|k, v| v.nil?}.tap do |expectations|
           expectations[:status] = status
         end
       end
Fix: Allow collection: false to as an expectation

Previously, .blank? would remove "false" values, which are instead
needed to test that a response *is not* a collection