diff --git a/lib/ransack/search.rb b/lib/ransack/search.rb
index 03115c5a..edea3362 100644
--- a/lib/ransack/search.rb
+++ b/lib/ransack/search.rb
@@ -27,6 +27,14 @@ def initialize(object, params = {}, options = {})
         params = params.dup
         params = params.transform_values { |v| v.is_a?(String) && strip_whitespace ? v.strip : v }
         params.delete_if { |k, v| [*v].all?{ |i| i.blank? && i != false } }
+        if params.key?(:c)
+          case params[:c]
+          when Array
+            params[:c].delete_if { |v| check_advanced_search_value? v }
+          when Hash
+            params[:c].delete_if { |_,v| check_advanced_search_value? v }
+          end
+        end
       else
         params = {}
       end
@@ -191,5 +199,13 @@ def collapse_multiparameter_attributes!(attrs)
       attrs
     end
 
+    def check_advanced_search_value?(value)
+      case value[:v]
+      when Array
+        value[:v].all?{ |i| i.blank? && i != false }
+      when Hash
+        value[:v].all?{ |_,i| value[:value].blank? && value[:value] != false }
+      end
+    end
   end
 end
diff --git a/spec/ransack/adapters/active_record/base_spec.rb b/spec/ransack/adapters/active_record/base_spec.rb
index ff7d0fab..c378343e 100644
--- a/spec/ransack/adapters/active_record/base_spec.rb
+++ b/spec/ransack/adapters/active_record/base_spec.rb
@@ -362,6 +362,17 @@ def self.sane_adapter?
             expect(s.result.to_sql).not_to match /LEFT OUTER JOIN/
           end
 
+          it 'should remove empty key value pairs from the complex params hash' do
+            s = Person.ransack(
+              c: {
+                '0' => {
+                        a: ['children_name'],
+                        p: 'eq', v: ['']
+                      }
+              })
+            expect(s.result.to_sql).not_to match /LEFT OUTER JOIN/
+          end
+
           it 'should keep proper key value pairs in the params hash' do
             s = Person.ransack(children_reversed_name_eq: 'Testing')
             expect(s.result.to_sql).to match /LEFT OUTER JOIN/