diff --git a/Sources/AnimationPlanner/Animations/Group.swift b/Sources/AnimationPlanner/Animations/Group.swift
index e92c647..8b99c71 100644
--- a/Sources/AnimationPlanner/Animations/Group.swift
+++ b/Sources/AnimationPlanner/Animations/Group.swift
@@ -7,10 +7,10 @@ public struct Group: SequenceAnimatable {
     public var duration: TimeInterval {
         return longestAnimation?.duration ?? 0
     }
-    
+
     /// All animations added to the group
     public let animations: [GroupAnimatable]
-    
+
     let longestAnimation: GroupAnimatable?
     
     internal init(animations: [GroupAnimatable]) {
diff --git a/Sources/AnimationPlanner/Protocols/AnimationModifiers.swift b/Sources/AnimationPlanner/Protocols/AnimationModifiers.swift
index 1d1967a..bb7683c 100644
--- a/Sources/AnimationPlanner/Protocols/AnimationModifiers.swift
+++ b/Sources/AnimationPlanner/Protocols/AnimationModifiers.swift
@@ -99,6 +99,8 @@ extension AnimateSpring: DelayModifier { }
 
 extension Extra: DelayModifier { }
 
+extension Sequence: DelayModifier { }
+
 /* -- Internal animation modifying convenience methods -- */
 
 /// Convenience protocol to let structs to change properties on themself without using `mutating`
diff --git a/Tests/AnimationPlannerTests/GroupTests.swift b/Tests/AnimationPlannerTests/GroupTests.swift
index 504a841..a70b4f8 100644
--- a/Tests/AnimationPlannerTests/GroupTests.swift
+++ b/Tests/AnimationPlannerTests/GroupTests.swift
@@ -1,5 +1,6 @@
 import AnimationPlanner
 import UIKit
+import XCTest
 
 class GroupTests: AnimationPlannerTests {
     
@@ -179,5 +180,4 @@ class GroupTests: AnimationPlannerTests {
 
         }
     }
-    
 }