diff --git a/sys/fs/fat/fat_opts.h b/sys/fs/fat/fat_opts.h
index 5c0c4f6..278f4d8 100644
--- a/sys/fs/fat/fat_opts.h
+++ b/sys/fs/fat/fat_opts.h
@@ -21,7 +21,7 @@
 
 // Max open files (reduce to lower memory requirements)
 #ifndef FATFS_MAX_OPEN_FILES
-#define FATFS_MAX_OPEN_FILES            128
+#define FATFS_MAX_OPEN_FILES            32
 #endif
 
 // Number of sectors per FAT_BUFFER (min 1)