diff --git a/Extents/ExtentsByte.cs b/Extents/ExtentsByte.cs
index fa80e8823..f5a3c883f 100644
--- a/Extents/ExtentsByte.cs
+++ b/Extents/ExtentsByte.cs
@@ -132,7 +132,7 @@ namespace Aaru.CommonTypes.Extents
             byte realEnd;
 
             if(run)
-                realEnd = (byte)((start + end) - 1);
+                realEnd = (byte)(start + end - 1);
             else
                 realEnd = end;
 
diff --git a/Extents/ExtentsInt.cs b/Extents/ExtentsInt.cs
index 5b13a8184..78dba695d 100644
--- a/Extents/ExtentsInt.cs
+++ b/Extents/ExtentsInt.cs
@@ -132,7 +132,7 @@ namespace Aaru.CommonTypes.Extents
             int realEnd;
 
             if(run)
-                realEnd = (start + end) - 1;
+                realEnd = start + end - 1;
             else
                 realEnd = end;
 
diff --git a/Extents/ExtentsLong.cs b/Extents/ExtentsLong.cs
index 4fe89eee7..606b96508 100644
--- a/Extents/ExtentsLong.cs
+++ b/Extents/ExtentsLong.cs
@@ -132,7 +132,7 @@ namespace Aaru.CommonTypes.Extents
             long realEnd;
 
             if(run)
-                realEnd = (start + end) - 1;
+                realEnd = start + end - 1;
             else
                 realEnd = end;
 
diff --git a/Extents/ExtentsSByte.cs b/Extents/ExtentsSByte.cs
index 65dccf576..faffcc271 100644
--- a/Extents/ExtentsSByte.cs
+++ b/Extents/ExtentsSByte.cs
@@ -132,7 +132,7 @@ namespace Aaru.CommonTypes.Extents
             sbyte realEnd;
 
             if(run)
-                realEnd = (sbyte)((start + end) - 1);
+                realEnd = (sbyte)(start + end - 1);
             else
                 realEnd = end;
 
diff --git a/Extents/ExtentsShort.cs b/Extents/ExtentsShort.cs
index adb47d7ff..b80f0f846 100644
--- a/Extents/ExtentsShort.cs
+++ b/Extents/ExtentsShort.cs
@@ -132,7 +132,7 @@ namespace Aaru.CommonTypes.Extents
             short realEnd;
 
             if(run)
-                realEnd = (short)((start + end) - 1);
+                realEnd = (short)(start + end - 1);
             else
                 realEnd = end;
 
diff --git a/Extents/ExtentsUInt.cs b/Extents/ExtentsUInt.cs
index 4cd2a677d..cc13a00b6 100644
--- a/Extents/ExtentsUInt.cs
+++ b/Extents/ExtentsUInt.cs
@@ -132,7 +132,7 @@ namespace Aaru.CommonTypes.Extents
             uint realEnd;
 
             if(run)
-                realEnd = (start + end) - 1;
+                realEnd = start + end - 1;
             else
                 realEnd = end;
 
diff --git a/Extents/ExtentsULong.cs b/Extents/ExtentsULong.cs
index 1bf5a012d..8b726eec0 100644
--- a/Extents/ExtentsULong.cs
+++ b/Extents/ExtentsULong.cs
@@ -132,7 +132,7 @@ namespace Aaru.CommonTypes.Extents
             ulong realEnd;
 
             if(run)
-                realEnd = (start + end) - 1;
+                realEnd = start + end - 1;
             else
                 realEnd = end;
 
diff --git a/Extents/ExtentsUShort.cs b/Extents/ExtentsUShort.cs
index 52b6be4e1..e6d663da3 100644
--- a/Extents/ExtentsUShort.cs
+++ b/Extents/ExtentsUShort.cs
@@ -132,7 +132,7 @@ namespace Aaru.CommonTypes.Extents
             ushort realEnd;
 
             if(run)
-                realEnd = (ushort)((start + end) - 1);
+                realEnd = (ushort)(start + end - 1);
             else
                 realEnd = end;
 
diff --git a/Partition.cs b/Partition.cs
index 9e1f9971a..84b599111 100644
--- a/Partition.cs
+++ b/Partition.cs
@@ -60,7 +60,7 @@ namespace Aaru.CommonTypes
         /// <summary>Information that does not find space in this struct</summary>
         public string Description;
         /// <summary>LBA of last partition sector</summary>
-        public ulong End => (Start + Length) - 1;
+        public ulong End => Start + Length - 1;
         /// <summary>Name of partition scheme that contains this partition</summary>
         public string Scheme;