diff --git a/lib/liquid/standardfilters.rb b/lib/liquid/standardfilters.rb
index e1867f2..3f53f50 100644
--- a/lib/liquid/standardfilters.rb
+++ b/lib/liquid/standardfilters.rb
@@ -419,8 +419,8 @@ module Liquid
       result.is_a?(BigDecimal) ? result.to_f : result
     end
 
-    def default(input, default_value = ''.freeze, false_as_missing = true)
-      if (false_as_missing ? !input : input.nil?) || input.respond_to?(:empty?) && input.empty?
+    def default(input, default_value = ''.freeze, allow_false: false)
+      if (allow_false ? input.nil? : !input) || input.respond_to?(:empty?) && input.empty?
         default_value
       else
         input
diff --git a/test/integration/standard_filter_test.rb b/test/integration/standard_filter_test.rb
index 7c32627..2e111eb 100644
--- a/test/integration/standard_filter_test.rb
+++ b/test/integration/standard_filter_test.rb
@@ -684,12 +684,12 @@ class StandardFiltersTest < Minitest::Test
   end
 
   def test_default_handle_false
-    assert_equal "foo", @filters.default("foo", "bar", false)
-    assert_equal "bar", @filters.default(nil, "bar", false)
-    assert_equal "bar", @filters.default("", "bar", false)
-    assert_equal false, @filters.default(false, "bar", false)
-    assert_equal "bar", @filters.default([], "bar", false)
-    assert_equal "bar", @filters.default({}, "bar", false)
+    assert_equal "foo", @filters.default("foo", "bar", allow_false: true)
+    assert_equal "bar", @filters.default(nil, "bar", allow_false: true)
+    assert_equal "bar", @filters.default("", "bar", allow_false: true)
+    assert_equal false, @filters.default(false, "bar", allow_false: true)
+    assert_equal "bar", @filters.default([], "bar", allow_false: true)
+    assert_equal "bar", @filters.default({}, "bar", allow_false: true)
   end
 
   def test_cannot_access_private_methods