diff --git a/app/controllers/sample_groups_controller.rb b/app/controllers/sample_groups_controller.rb
index 104d793f9..f3319ba48 100644
--- a/app/controllers/sample_groups_controller.rb
+++ b/app/controllers/sample_groups_controller.rb
@@ -21,7 +21,7 @@ class SampleGroupsController < ApplicationController
           render json: {
             id: @sample_group.id,
             flash: t(
-              "sample_groups.create.success_flash",
+              'sample_groups.create.success_flash',
               sample_group: @sample_group.name,
               organization: @organization.name
             )
diff --git a/app/controllers/sample_types_controller.rb b/app/controllers/sample_types_controller.rb
index d4ee5a7e5..feea3ec98 100644
--- a/app/controllers/sample_types_controller.rb
+++ b/app/controllers/sample_types_controller.rb
@@ -26,7 +26,7 @@ class SampleTypesController < ApplicationController
           render json: {
             id: @sample_type.id,
             flash: t(
-              "sample_types.create.success_flash",
+              'sample_types.create.success_flash',
               sample_type: @sample_type.name,
               organization: @organization.name
             )