diff --git a/DiscImageChef.Filesystems/UNICOS.cs b/DiscImageChef.Filesystems/UNICOS.cs
index 6c62d2aeb..122b381ab 100644
--- a/DiscImageChef.Filesystems/UNICOS.cs
+++ b/DiscImageChef.Filesystems/UNICOS.cs
@@ -99,7 +99,7 @@ namespace DiscImageChef.Filesystems
             public extent_t s_sfs;     /* SFS only blocks */
             public long s_flag;     /* Flag word */
             [MarshalAs(UnmanagedType.ByValArray, SizeConst = NC1MAXPART)]
-            public nc1fdev_sb s_part;  /* Partition descriptors */
+            public nc1fdev_sb[] s_part;  /* Partition descriptors */
             public long s_iounit;       /* Physical block size */
             public long s_numiresblks;  /* number of inode reservation blocks */
                                         /* per region (currently 1) */
diff --git a/DiscImageChef.Filesystems/dump.cs b/DiscImageChef.Filesystems/dump.cs
index 8629dc79b..963d8abba 100644
--- a/DiscImageChef.Filesystems/dump.cs
+++ b/DiscImageChef.Filesystems/dump.cs
@@ -184,6 +184,7 @@ namespace DiscImageChef.Filesystems
         const int NDADDR = 12;
         const int NIADDR = 3;
 
+        [StructLayout(LayoutKind.Sequential, Pack = 1)]
         struct dinode
         {
             public ushort di_mode;    /*   0: IFMT, permissions; see below. */
@@ -197,19 +198,18 @@ namespace DiscImageChef.Filesystems
             public int di_ctime;   /*  32: Last inode change time. */
             public int di_ctimensec;   /*  36: Last inode change time. */
             [MarshalAs(UnmanagedType.ByValArray, SizeConst = NDADDR)]
-            public ufs_daddr_t di_db;  /*  40: Direct disk blocks. */
+            public ufs_daddr_t[] di_db;  /*  40: Direct disk blocks. */
             [MarshalAs(UnmanagedType.ByValArray, SizeConst = NIADDR)]
-            public ufs_daddr_t di_ib;  /*  88: Indirect disk blocks. */
+            public ufs_daddr_t[] di_ib;  /*  88: Indirect disk blocks. */
             public uint di_flags;   /* 100: Status flags (chflags). */
             public uint di_blocks;  /* 104: Blocks actually held. */
             public int di_gen;     /* 108: Generation number. */
             public uint di_uid;     /* 112: File owner. */
             public uint di_gid;     /* 116: File group. */
             [MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
-            public int di_spare;    /* 120: Reserved; currently unused */
+            public int[] di_spare;    /* 120: Reserved; currently unused */
         }
 
-
         public dump()
         {
             Name = "dump(8) Plugin";