diff --git a/lib/admin_actions/number_change.rb b/lib/admin_actions/number_change.rb
index 2c830ea4bc584acace3c55e258d4811ff51e6290..b5b1cc2395e5086b59a8e139395e4dbc01f4cad1 100644
--- a/lib/admin_actions/number_change.rb
+++ b/lib/admin_actions/number_change.rb
@@ -40,7 +40,7 @@ class AdminAction
 
 		NilKey = Struct.new(:key) {
 			def to_s
-			 "Expected a key with a value, but #{key} has no value."
+				"Expected a key with a value, but #{key} has no value."
 			end
 		}
 
@@ -73,8 +73,8 @@ class AdminAction
 
 		def to_reverse
 			with(
-			 old_tel: new_tel,
-			 new_tel: old_tel
+				old_tel: new_tel,
+				new_tel: old_tel
 			)
 		end
 
@@ -85,7 +85,7 @@ class AdminAction
 	protected
 
 		def check_noop
-		 EMPromise.reject(NoOp.new) if new_tel == old_tel
+			EMPromise.reject(NoOp.new) if new_tel == old_tel
 		end
 
 		def check_exist