diff --git a/app/utilities/protocols_importer.rb b/app/utilities/protocols_importer.rb
index 34bf3cd83..98acb38e3 100644
--- a/app/utilities/protocols_importer.rb
+++ b/app/utilities/protocols_importer.rb
@@ -90,11 +90,11 @@ module ProtocolsImporter
         end
       end
 
-      if step_json["tables"]
-        step_json["tables"].values.each do |table_json|
+      if step_json['tables']
+        step_json['tables'].values.each do |table_json|
           table = Table.create!(
-            name: table_json["name"],
-            contents: Base64.decode64(table_json["contents"]),
+            name: table_json['name'],
+            contents: Base64.decode64(table_json['contents']),
             created_by: user,
             last_modified_by: user
           )