diff --git a/DiscImageChef.CommonTypes/Partition.cs b/DiscImageChef.CommonTypes/Partition.cs
index 23dd19b5..3f6d8ca5 100644
--- a/DiscImageChef.CommonTypes/Partition.cs
+++ b/DiscImageChef.CommonTypes/Partition.cs
@@ -68,7 +68,7 @@ namespace DiscImageChef.CommonTypes
             return Start == other.Start && Length == other.Length;
         }
 
-        public override bool Equals(Object obj)
+        public override bool Equals(object obj)
         {
             if(obj == null || !(obj is Partition)) return false;
             else return Equals((Partition)obj);
diff --git a/DiscImageChef.Devices/Windows/Extern.cs b/DiscImageChef.Devices/Windows/Extern.cs
index 5e310412..c2c8a373 100644
--- a/DiscImageChef.Devices/Windows/Extern.cs
+++ b/DiscImageChef.Devices/Windows/Extern.cs
@@ -104,8 +104,8 @@ namespace DiscImageChef.Devices.Windows
         public static extern bool SetupDiGetDeviceInterfaceDetail(SafeFileHandle hDevInfo,
                                                                   ref DeviceInterfaceData deviceInterfaceData,
                                                                   IntPtr deviceInterfaceDetailData,
-                                                                  UInt32 deviceInterfaceDetailDataSize,
-                                                                  ref UInt32 requiredSize, IntPtr deviceInfoData);
+                                                                  uint deviceInterfaceDetailDataSize,
+                                                                  ref uint requiredSize, IntPtr deviceInfoData);
 
         [DllImport("setupapi.dll", CharSet = CharSet.Auto, SetLastError = true)]
         public static extern bool SetupDiDestroyDeviceInfoList(SafeFileHandle hDevInfo);
diff --git a/DiscImageChef.DiscImages/HDCopy.cs b/DiscImageChef.DiscImages/HDCopy.cs
index 94a30717..e2b23646 100644
--- a/DiscImageChef.DiscImages/HDCopy.cs
+++ b/DiscImageChef.DiscImages/HDCopy.cs
@@ -110,7 +110,7 @@ namespace DiscImageChef.DiscImages
             /// <summary>
             /// The length of the compressed block, in bytes. Little-endian.
             /// </summary>
-            public UInt16 length;
+            public ushort length;
 
             /// <summary>
             /// The byte value used as RLE escape sequence