diff --git a/osu.Game.Tests/Mods/ModDifficultyAdjustTest.cs b/osu.Game.Tests/Mods/ModDifficultyAdjustTest.cs
index efb04978a5..4101652c49 100644
--- a/osu.Game.Tests/Mods/ModDifficultyAdjustTest.cs
+++ b/osu.Game.Tests/Mods/ModDifficultyAdjustTest.cs
@@ -15,7 +15,7 @@ namespace osu.Game.Tests.Mods
     [TestFixture]
     public class ModDifficultyAdjustTest
     {
-        private TestModDifficultyAdjust testMod;
+        private TestModDifficultyAdjust testMod = null!;
 
         [SetUp]
         public void Setup()
diff --git a/osu.Game.Tests/Rulesets/Mods/ModTimeRampTest.cs b/osu.Game.Tests/Rulesets/Mods/ModTimeRampTest.cs
index 51163efd6a..4601737558 100644
--- a/osu.Game.Tests/Rulesets/Mods/ModTimeRampTest.cs
+++ b/osu.Game.Tests/Rulesets/Mods/ModTimeRampTest.cs
@@ -17,8 +17,8 @@ public class ModTimeRampTest
         private const double start_time = 1000;
         private const double duration = 9000;
 
-        private TrackVirtual track;
-        private OsuPlayfield playfield;
+        private TrackVirtual track = null!;
+        private OsuPlayfield playfield = null!;
 
         [SetUp]
         public void SetUp()