diff --git a/lib/simple_form/inputs/string_input.rb b/lib/simple_form/inputs/string_input.rb
index b296ebbc..b471b558 100644
--- a/lib/simple_form/inputs/string_input.rb
+++ b/lib/simple_form/inputs/string_input.rb
@@ -29,7 +29,7 @@ module SimpleForm
       end
 
       def placeholder
-        @placeholder ||= options[:placeholder] || translate(:placeholder)
+        @placeholder ||= options[:placeholder] || translate(:placeholders)
       end
     end
   end
diff --git a/test/form_builder_test.rb b/test/form_builder_test.rb
index 46709f98..a5a3a7cf 100644
--- a/test/form_builder_test.rb
+++ b/test/form_builder_test.rb
@@ -231,7 +231,7 @@ class FormBuilderTest < ActionView::TestCase
   end
 
   test 'placeholder should not be generated when set to false' do
-    store_translations(:en, :simple_form => { :placeholder => { :user => {
+    store_translations(:en, :simple_form => { :placeholders => { :user => {
       :name => 'Name goes here'
     } } }) do
       with_form_for @user, :name, :placeholder => false
diff --git a/test/inputs_test.rb b/test/inputs_test.rb
index 255f6242..9b8420b2 100644
--- a/test/inputs_test.rb
+++ b/test/inputs_test.rb
@@ -59,7 +59,7 @@ class InputTest < ActionView::TestCase
   end
 
   test 'input should use i18n to translate placeholder text' do
-    store_translations(:en, :simple_form => { :placeholder => { :user => {
+    store_translations(:en, :simple_form => { :placeholders => { :user => {
       :name => 'Name goes here'
     } } }) do
       with_input_for @user, :name, :string