diff --git a/libraries/AP_Filesystem/AP_Filesystem_config.h b/libraries/AP_Filesystem/AP_Filesystem_config.h
index 868d432a666526..7d390d7973ca41 100644
--- a/libraries/AP_Filesystem/AP_Filesystem_config.h
+++ b/libraries/AP_Filesystem/AP_Filesystem_config.h
@@ -56,7 +56,7 @@
 // be able to open and read a non-virtual file.  Notably this excludes
 // virtual files like SYSFS, and the magic param/mission upload targets.
 #ifndef AP_FILESYSTEM_FILE_READING_ENABLED
-#define AP_FILESYSTEM_FILE_READING_ENABLED (AP_FILESYSTEM_FILE_WRITING_ENABLED || AP_FILESYSTEM_ROMFS_ENABLED)
+#define AP_FILESYSTEM_FILE_READING_ENABLED (AP_FILESYSTEM_FILE_WRITING_ENABLED || AP_FILESYSTEM_ROMFS_ENABLED || AP_FILESYSTEM_SYS_ENABLED || AP_FILESYSTEM_PARAM_ENABLED)
 #endif
 
 #ifndef AP_FILESYSTEM_SYS_FLASH_ENABLED