--- a/detect.c
+++ b/detect.c
@@ -47,6 +47,7 @@
 void detect_dos_partmap(SECTION *section, int level);
 void detect_gpt_partmap(SECTION *section, int level);
 void detect_fat(SECTION *section, int level);
+void detect_exfat(SECTION *section, int level);
 void detect_ntfs(SECTION *section, int level);
 void detect_hpfs(SECTION *section, int level);
 void detect_dos_loader(SECTION *section, int level);
@@ -131,6 +132,7 @@
   detect_amiga_fs,
   detect_apple_volume,
   detect_fat,
+  detect_exfat,
   detect_ntfs,
   detect_hpfs,
   detect_udf,
--- a/dos.c
+++ b/dos.c
@@ -429,6 +429,8 @@
   /* since the above is also present on NTFS, make sure it's not NTFS... */
   if (memcmp(buf + 3, "NTFS    ", 8) == 0)
     return;
+  if (memcmp(buf + 3, "EXFAT   ", 8) == 0)
+    return;
 
   /* next, some soft tests, taking score */
   score = 0;
@@ -516,6 +518,25 @@
 }
 
 /*
+ * exFAT file system
+ */
+
+void detect_exfat(SECTION *section, int level)
+{
+  unsigned char *buf;
+
+  if (get_buffer(section, 0, 512, (void **)&buf) < 512)
+    return;
+
+  /* check signatures */
+  if (memcmp(buf + 3, "EXFAT   ", 8) != 0)
+    return;
+
+  /* tell the user */
+  print_line(level, "exFAT file system");
+}
+
+/*
  * NTFS file system
  */