diff --git a/src/ByteAether.Ulid/Ulid.Guid.cs b/src/ByteAether.Ulid/Ulid.Guid.cs
index d91a880..419ca58 100644
--- a/src/ByteAether.Ulid/Ulid.Guid.cs
+++ b/src/ByteAether.Ulid/Ulid.Guid.cs
@@ -144,7 +144,7 @@ public Guid ToGuid()
 #if NET7_0_OR_GREATER
 		Vector128.IsHardwareAccelerated;
 #else
-		Sse3.IsSupported;
+		Ssse3.IsSupported;
 #endif
 
 	private static readonly Vector128<byte> _shuffleMask