diff --git a/db/migrate/20190705085829_add_sec_key_to_outputs.rb b/db/migrate/20190705085829_add_sec_key_to_outputs.rb
index 428fbaced..df4d59be0 100644
--- a/db/migrate/20190705085829_add_sec_key_to_outputs.rb
+++ b/db/migrate/20190705085829_add_sec_key_to_outputs.rb
@@ -1,5 +1,7 @@
 class AddSecKeyToOutputs < ActiveRecord::Migration[5.2]
   def change
     add_column :outputs, :sec_key, :string
+    add_column :outputs, :ts_mem, :float
+    add_column :outputs, :ts_time, :float
   end
 end
diff --git a/db/migrate/20190716062401_add_ts_time_to_outputs.rb b/db/migrate/20190716062401_add_ts_time_to_outputs.rb
deleted file mode 100644
index 8e0c55a78..000000000
--- a/db/migrate/20190716062401_add_ts_time_to_outputs.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddTsTimeToOutputs < ActiveRecord::Migration[5.2]
-  def change
-    add_column :outputs, :ts_time, :float
-  end
-end
diff --git a/db/migrate/20190718100242_add_ts_mem_to_outputs.rb b/db/migrate/20190718100242_add_ts_mem_to_outputs.rb
deleted file mode 100644
index 70b593a35..000000000
--- a/db/migrate/20190718100242_add_ts_mem_to_outputs.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class AddTsMemToOutputs < ActiveRecord::Migration[5.2]
-  def change
-    add_column :outputs, :ts_mem, :float
-  end
-end