diff --git a/osu.Game.Tests/Resources/skin-zero-alpha-colour.ini b/osu.Game.Tests/Resources/skin-zero-alpha-colour.ini
new file mode 100644
index 0000000000..3c0dae6b13
--- /dev/null
+++ b/osu.Game.Tests/Resources/skin-zero-alpha-colour.ini
@@ -0,0 +1,5 @@
+[General]
+Version: latest
+
+[Colours]
+Combo1: 255,255,255,0
\ No newline at end of file
diff --git a/osu.Game.Tests/Skins/LegacySkinDecoderTest.cs b/osu.Game.Tests/Skins/LegacySkinDecoderTest.cs
index aedf26ee75..c408d2f182 100644
--- a/osu.Game.Tests/Skins/LegacySkinDecoderTest.cs
+++ b/osu.Game.Tests/Skins/LegacySkinDecoderTest.cs
@@ -108,5 +108,15 @@ namespace osu.Game.Tests.Skins
             using (var stream = new LineBufferedReader(resStream))
                 Assert.That(decoder.Decode(stream).LegacyVersion, Is.EqualTo(1.0m));
         }
+
+        [Test]
+        public void TestDecodeColourWithZeroAlpha()
+        {
+            var decoder = new LegacySkinDecoder();
+
+            using (var resStream = TestResources.OpenResource("skin-zero-alpha-colour.ini"))
+            using (var stream = new LineBufferedReader(resStream))
+                Assert.That(decoder.Decode(stream).ComboColours[0].A, Is.EqualTo(1.0f));
+        }
     }
 }
diff --git a/osu.Game/Beatmaps/Formats/LegacyDecoder.cs b/osu.Game/Beatmaps/Formats/LegacyDecoder.cs
index 6406bd88a5..a0e83554a3 100644
--- a/osu.Game/Beatmaps/Formats/LegacyDecoder.cs
+++ b/osu.Game/Beatmaps/Formats/LegacyDecoder.cs
@@ -103,7 +103,12 @@ namespace osu.Game.Beatmaps.Formats
 
             try
             {
-                colour = new Color4(byte.Parse(split[0]), byte.Parse(split[1]), byte.Parse(split[2]), split.Length == 4 ? byte.Parse(split[3]) : (byte)255);
+                byte alpha = split.Length == 4 ? byte.Parse(split[3]) : (byte)255;
+
+                if (alpha == 0)
+                    alpha = 255;
+
+                colour = new Color4(byte.Parse(split[0]), byte.Parse(split[1]), byte.Parse(split[2]), alpha);
             }
             catch
             {