diff --git a/osu.Game.Rulesets.Osu/Mods/OsuModHardRock.cs b/osu.Game.Rulesets.Osu/Mods/OsuModHardRock.cs
index 82b8959456..c94bafe6af 100644
--- a/osu.Game.Rulesets.Osu/Mods/OsuModHardRock.cs
+++ b/osu.Game.Rulesets.Osu/Mods/OsuModHardRock.cs
@@ -17,13 +17,13 @@ namespace osu.Game.Rulesets.Osu.Mods
     {
         public override double ScoreMultiplier => 1.06;
 
-        public override Type[] IncompatibleMods => new[] { typeof(ModEasy), typeof(ModDifficultyAdjust), typeof(ModMirror) };
+        public override Type[] IncompatibleMods => base.IncompatibleMods.Append(typeof(ModMirror)).ToArray();
 
         public void ApplyToHitObject(HitObject hitObject)
         {
             var osuObject = (OsuHitObject)hitObject;
 
-            OsuHitObjectGenerationUtils.ReflectOsuHitObjectVertically(osuObject);
+            OsuHitObjectGenerationUtils.ReflectVertically(osuObject);
         }
     }
 }
diff --git a/osu.Game.Rulesets.Osu/Mods/OsuModMirror.cs b/osu.Game.Rulesets.Osu/Mods/OsuModMirror.cs
index fd1d685fd1..9b4614c9b2 100644
--- a/osu.Game.Rulesets.Osu/Mods/OsuModMirror.cs
+++ b/osu.Game.Rulesets.Osu/Mods/OsuModMirror.cs
@@ -29,14 +29,16 @@ namespace osu.Game.Rulesets.Osu.Mods
             switch (Reflection.Value)
             {
                 case MirrorType.Horizontal:
-                    OsuHitObjectGenerationUtils.ReflectOsuHitObjectHorizontally(osuObject);
+                    OsuHitObjectGenerationUtils.ReflectHorizontally(osuObject);
                     break;
+
                 case MirrorType.Vertical:
-                    OsuHitObjectGenerationUtils.ReflectOsuHitObjectVertically(osuObject);
+                    OsuHitObjectGenerationUtils.ReflectVertically(osuObject);
                     break;
+
                 case MirrorType.Both:
-                    OsuHitObjectGenerationUtils.ReflectOsuHitObjectHorizontally(osuObject);
-                    OsuHitObjectGenerationUtils.ReflectOsuHitObjectVertically(osuObject);
+                    OsuHitObjectGenerationUtils.ReflectHorizontally(osuObject);
+                    OsuHitObjectGenerationUtils.ReflectVertically(osuObject);
                     break;
             }
         }
diff --git a/osu.Game.Rulesets.Osu/Utils/OsuHitObjectGenerationUtils.cs b/osu.Game.Rulesets.Osu/Utils/OsuHitObjectGenerationUtils.cs
index bf55898901..fcd5fb4a31 100644
--- a/osu.Game.Rulesets.Osu/Utils/OsuHitObjectGenerationUtils.cs
+++ b/osu.Game.Rulesets.Osu/Utils/OsuHitObjectGenerationUtils.cs
@@ -106,16 +106,15 @@ namespace osu.Game.Rulesets.Osu.Utils
         }
 
         /// <summary>
-        /// Reflects an OsuHitObject's position horizontally.
+        /// Reflects the position of the <see cref="OsuHitObject"/> in the playfield vertically.
         /// </summary>
-        /// <param name="osuObject">The OsuHitObject to be reflected.</param>
-        /// <returns>The reflected OsuHitObject.</returns>
-        public static OsuHitObject ReflectOsuHitObjectHorizontally(OsuHitObject osuObject)
+        /// <param name="osuObject">The object to reflect.</param>
+        public static void ReflectHorizontally(OsuHitObject osuObject)
         {
             osuObject.Position = new Vector2(OsuPlayfield.BASE_SIZE.X - osuObject.X, osuObject.Position.Y);
 
             if (!(osuObject is Slider slider))
-                return osuObject;
+                return;
 
             slider.NestedHitObjects.OfType<SliderTick>().ForEach(h => h.Position = new Vector2(OsuPlayfield.BASE_SIZE.X - h.Position.X, h.Position.Y));
             slider.NestedHitObjects.OfType<SliderRepeat>().ForEach(h => h.Position = new Vector2(OsuPlayfield.BASE_SIZE.X - h.Position.X, h.Position.Y));
@@ -125,21 +124,18 @@ namespace osu.Game.Rulesets.Osu.Utils
                 point.Position.Value = new Vector2(-point.Position.Value.X, point.Position.Value.Y);
 
             slider.Path = new SliderPath(controlPoints, slider.Path.ExpectedDistance.Value);
-
-            return osuObject;
         }
 
         /// <summary>
-        /// Reflects an OsuHitObject's position vertically.
+        /// Reflects the position of the <see cref="OsuHitObject"/> in the playfield horizontally.
         /// </summary>
-        /// <param name="osuObject">The OsuHitObject to be reflected.</param>
-        /// <returns>The reflected OsuHitObject.</returns>
-        public static OsuHitObject ReflectOsuHitObjectVertically(OsuHitObject osuObject)
+        /// <param name="osuObject">The object to reflect.</param>
+        public static void ReflectVertically(OsuHitObject osuObject)
         {
             osuObject.Position = new Vector2(osuObject.Position.X, OsuPlayfield.BASE_SIZE.Y - osuObject.Y);
 
             if (!(osuObject is Slider slider))
-                return osuObject;
+                return;
 
             slider.NestedHitObjects.OfType<SliderTick>().ForEach(h => h.Position = new Vector2(h.Position.X, OsuPlayfield.BASE_SIZE.Y - h.Position.Y));
             slider.NestedHitObjects.OfType<SliderRepeat>().ForEach(h => h.Position = new Vector2(h.Position.X, OsuPlayfield.BASE_SIZE.Y - h.Position.Y));
@@ -149,8 +145,6 @@ namespace osu.Game.Rulesets.Osu.Utils
                 point.Position.Value = new Vector2(point.Position.Value.X, -point.Position.Value.Y);
 
             slider.Path = new SliderPath(controlPoints, slider.Path.ExpectedDistance.Value);
-
-            return osuObject;
         }
     }
 }