diff --git a/doc/iso_hybrid_fs.txt b/doc/iso_hybrid_fs.txt
index 607fea2..7b57b33 100644
--- a/doc/iso_hybrid_fs.txt
+++ b/doc/iso_hybrid_fs.txt
@@ -3,7 +3,7 @@
 
                by Thomas Schmitt    - mailto:scdbackup@gmx.net
                Libburnia project    - mailto:libburn-hackers@pykix.org
-                                  21 Feb 2012
+                                  07 Jun 2012
 
 
 The overall framework for the filesystem images produced by libisofs is given
diff --git a/libisofs/system_area.c b/libisofs/system_area.c
index 03e9fe6..29e0a94 100644
--- a/libisofs/system_area.c
+++ b/libisofs/system_area.c
@@ -820,11 +820,16 @@ static int iso_write_apm_entry(Ecma119Image *t, int apm_block_size,
     wpt += 4;
     /* Status flags : bit0= entry is valid , bit1= entry is allocated
                       bit4= partition is readable , bit5= partition is writable
+                      bit30= automatic mount (legacy Mac)
     */
-    if (flag & 1)
+    if (flag & 1) {
         flags = 3;
-    else
+    } else {
         flags = 0x13;
+        if (strncmp((char *) req->type, "Apple_HFS", 9) == 0 &&
+            req->type[9] == 0)
+            flags |= 0x40000000;
+    }
     iso_msb(wpt, flags, 4);
     wpt += 4;