diff --git a/lib/search/apple_store_search.rb b/lib/search/apple_store_search.rb
index ec77c66..2914df0 100644
--- a/lib/search/apple_store_search.rb
+++ b/lib/search/apple_store_search.rb
@@ -20,7 +20,6 @@ class AppleStoreSearch < SerpApiSearch
 
   def initialize(params = {})
     super(params, APPLE_STORE_ENGINE)
-    check_params([:term, :engine])
   end
 
   def get_location
diff --git a/lib/search/baidu_search.rb b/lib/search/baidu_search.rb
index 00f7ac2..6f9f5e8 100644
--- a/lib/search/baidu_search.rb
+++ b/lib/search/baidu_search.rb
@@ -20,7 +20,6 @@ class BaiduSearch < SerpApiSearch
 
   def initialize(params = {})
     super(params, BAIDU_ENGINE)
-    check_params([:q, :engine])
   end
 
   def get_location
diff --git a/lib/search/bing_search.rb b/lib/search/bing_search.rb
index f27853a..9bdae0f 100644
--- a/lib/search/bing_search.rb
+++ b/lib/search/bing_search.rb
@@ -22,7 +22,6 @@ class BingSearch < SerpApiSearch
 
   def initialize(params = {})
     super(params, BING_ENGINE)
-    check_params([:q, :engine])
   end
 
 end
diff --git a/lib/search/duckduckgo_search.rb b/lib/search/duckduckgo_search.rb
index dfc793e..c870937 100644
--- a/lib/search/duckduckgo_search.rb
+++ b/lib/search/duckduckgo_search.rb
@@ -20,7 +20,6 @@ class DuckduckgoSearch < SerpApiSearch
 
   def initialize(params = {})
     super(params, DUCKDUCKGO_ENGINE)
-    check_params([:q, :engine])
   end
 
 end
diff --git a/lib/search/ebay_search.rb b/lib/search/ebay_search.rb
index 3b38bdc..e7acb4a 100644
--- a/lib/search/ebay_search.rb
+++ b/lib/search/ebay_search.rb
@@ -21,7 +21,6 @@ class EbaySearch < SerpApiSearch
 
   def initialize(params = {})
     super(params, EBAY_ENGINE)
-    check_params([:_nkw, :engine])
   end
 
   def get_location
diff --git a/lib/search/google_search.rb b/lib/search/google_search.rb
index c5c58a8..e40fdd6 100644
--- a/lib/search/google_search.rb
+++ b/lib/search/google_search.rb
@@ -30,7 +30,6 @@ class GoogleSearch < SerpApiSearch
 
   def initialize(params = {})
     super(params, GOOGLE_ENGINE)
-    check_params([:q, :engine])
   end
 
 end
diff --git a/lib/search/homedepot_search.rb b/lib/search/homedepot_search.rb
index d0379da..86d1451 100644
--- a/lib/search/homedepot_search.rb
+++ b/lib/search/homedepot_search.rb
@@ -20,7 +20,6 @@ class HomedepotSearch < SerpApiSearch
 
   def initialize(params = {})
     super(params, HOMEDEPOT_ENGINE)
-    check_params([:q, :engine])
   end
 
   def get_location
diff --git a/lib/search/naver_search.rb b/lib/search/naver_search.rb
index 3bce131..b12d3ba 100644
--- a/lib/search/naver_search.rb
+++ b/lib/search/naver_search.rb
@@ -22,7 +22,6 @@ class NaverSearch < SerpApiSearch
 
   def initialize(params = {})
     super(params, NAVER_ENGINE)
-    check_params([:query, :engine])
   end
 
   def get_location
diff --git a/lib/search/serp_api_search.rb b/lib/search/serp_api_search.rb
index 5d4377f..4d29155 100644
--- a/lib/search/serp_api_search.rb
+++ b/lib/search/serp_api_search.rb
@@ -146,35 +146,6 @@ def get_results(path)
       raise e
     end
   end
-
-  def check_params(keys = [])
-    return if @params.keys == [:engine]
-
-    raise SerpApiException.new('keys must be a list of String or Symbol') unless keys.class == Array
-    missing = []
-    keys.each do |key|
-      case key.class.to_s
-      when 'String'
-        if @params[key].nil?
-          if @params[key.to_sym].nil?
-            missing << key.to_s
-          end
-        end
-      when 'Symbol'
-        if @params[key].nil?
-          if @params[key.to_s].nil?
-            missing << key.to_s
-          end
-        end
-      else
-        raise SerpApiException.new('keys must contains Symbol or String')
-      end
-    end
-    if !missing.empty?
-      raise SerpApiException.new("missing required keys in params: \n - #{missing.join("\n -")}")
-    end
-  end
-
 end
 
 # Standard SerpApiException for anything related to the client
diff --git a/lib/search/walmart_search.rb b/lib/search/walmart_search.rb
index 9255e4b..50ff636 100644
--- a/lib/search/walmart_search.rb
+++ b/lib/search/walmart_search.rb
@@ -20,7 +20,6 @@ class WalmartSearch < SerpApiSearch
 
   def initialize(params = {})
     super(params, WALMART_ENGINE)
-    check_params([:query, :engine])
   end
 
   def get_location
diff --git a/lib/search/yahoo_search.rb b/lib/search/yahoo_search.rb
index a33a33e..9036379 100644
--- a/lib/search/yahoo_search.rb
+++ b/lib/search/yahoo_search.rb
@@ -21,7 +21,6 @@ class YahooSearch < SerpApiSearch
 
   def initialize(params = {})
     super(params, YAHOO_ENGINE)
-    check_params([:p, :engine])
   end
 
   def get_location
diff --git a/lib/search/yandex_search.rb b/lib/search/yandex_search.rb
index c813621..5cd906c 100644
--- a/lib/search/yandex_search.rb
+++ b/lib/search/yandex_search.rb
@@ -21,7 +21,6 @@ class YandexSearch < SerpApiSearch
 
   def initialize(params = {})
     super(params, YANDEX_ENGINE)
-    check_params([:text, :engine])
   end
 
   def get_location
diff --git a/lib/search/youtube_search.rb b/lib/search/youtube_search.rb
index 648c5a3..418b16d 100644
--- a/lib/search/youtube_search.rb
+++ b/lib/search/youtube_search.rb
@@ -20,7 +20,6 @@ class YoutubeSearch < SerpApiSearch
 
   def initialize(params = {})
     super(params, YOUTUBE_ENGINE)
-    check_params([:search_query, :engine])
   end
 
 end