diff --git a/README.md b/README.md
index 34f5b1f..01b3582 100644
--- a/README.md
+++ b/README.md
@@ -87,6 +87,7 @@ EMU-WRITER -- You didn't think you needed it, but now you know.
 * When creating the disk image, write-protect the program files.
 * When splitting a paragraph, the "new" paragraph should always be the smaller of the two. This makes memory management easier.
 * Consider adding a defrag operation that runs every 64/60s seconds.
+* The save routine appears to ignore write-protection status. Use the PAB's STATUS op-code in order to fix that, or alternatively, simply refuse to overwrite any file that is not DSP/FIX 64.
 
 ### Manual test cases
 
diff --git a/assm.py b/assm.py
index 7d6badc..22a4756 100644
--- a/assm.py
+++ b/assm.py
@@ -108,9 +108,14 @@ def link_main_files(linked_file, include_membuf, object_files):
 program_files = glob.glob(WORK_FOLDER + "EMUWRITE*")
 for program_file in program_files:
     if not program_file.endswith(".dsk"):
+        # Add the program files to disk
         add_command_1 = "xdm99.py {disk_image} -a {program_file} -f PROGRAM"
         add_command_2 = add_command_1.format(disk_image = disk_image, program_file = program_file)
         os.system(add_command_2)
+        # Write-Protect the program files
+        protect_command_1 = "xdm99.py {disk_image} -w {program_file}"
+        protect_command_2 = protect_command_1.format(disk_image = disk_image, program_file = program_file.replace("./Fiad\\", ""))
+        os.system(protect_command_2)
 
 # Add example documents to disk imageE
 text_files = ["HANSEL", "THREELANG"]