diff --git a/lib/searchkick/search.rb b/lib/searchkick/search.rb
index aa90ffc..ef2026d 100644
--- a/lib/searchkick/search.rb
+++ b/lib/searchkick/search.rb
@@ -185,7 +185,11 @@ module Searchkick
       term_filters =
         proc do |field, value|
           if value.is_a?(Array) # in query
-            {or: value.map{|v| term_filters.call(field, v) }}
+            if value.any?
+              {or: value.map{|v| term_filters.call(field, v) }}
+            else
+              {terms: {field => value}} # match nothing
+            end
           elsif value.nil?
             {missing: {"field" => field, existence: true, null_value: true}}
           else
diff --git a/test/sql_test.rb b/test/sql_test.rb
index b9e6565..03584c9 100644
--- a/test/sql_test.rb
+++ b/test/sql_test.rb
@@ -95,6 +95,16 @@ class TestSql < Minitest::Unit::TestCase
     assert_search "product", ["Product A"], where: {id: product.id.to_s}
   end
 
+  def test_where_empty
+    store_names ["Product A"]
+    assert_search "product", ["Product A"], where: {}
+  end
+
+  def test_where_empty_array
+    store_names ["Product A"]
+    assert_search "product", [], where: {store_id: []}
+  end
+
   def test_near
     store [
       {name: "San Francisco", latitude: 37.7833, longitude: -122.4167},
--
libgit2 0.21.0