diff --git a/src/apple2/debug.c b/src/apple2/debug.c
index 14d2644..aa98a8d 100644
--- a/src/apple2/debug.c
+++ b/src/apple2/debug.c
@@ -38,8 +38,6 @@ apple2_debug_cmd cmdtable[] = {
         "Add breakpoint at <addr>", },
     { "dblock", "db", apple2_debug_cmd_dblock, 2, "<from> <to>",
         "Disassemble a block of code", },
-    { "disasm", "d", apple2_debug_cmd_disasm, 0, "",
-        "Toggle disassembly", },
     { "help", "h", apple2_debug_cmd_help, 0, "",
         "Print out this list of commands", },
     { "hdump", "hd", apple2_debug_cmd_hdump, 2, "<from> <to>",
@@ -428,20 +426,6 @@ DEBUG_CMD(step)
     apple2_debug_break(cpu->PC);
 }
 
-/*
- * Toggle disassembly, and print a notice of the change and its new
- * status.
- */
-DEBUG_CMD(disasm)
-{
-    apple2 *mach = (apple2 *)vm_di_get(VM_MACHINE);
-    FILE *stream = (FILE *)vm_di_get(VM_OUTPUT);
-
-    mach->disasm = true;
-
-    fprintf(stream, "disassembly %s\n", mach->disasm ? "ON" : "OFF");
-}
-
 /*
  * Disassemble a block of memory from one given address to another.
  * Useful when you want to see what memory looks like in a given region.
diff --git a/tests/vm_debug.c b/tests/vm_debug.c
index f0793aa..07a3265 100644
--- a/tests/vm_debug.c
+++ b/tests/vm_debug.c
@@ -276,14 +276,6 @@ Test(apple2_debug, cmd_step)
 
 /* Test(apple2_debug, cmd_quit) */
 
-Test(apple2_debug, cmd_disassemble)
-{
-    cr_assert_eq(mach->disasm, false);
-    apple2_debug_cmd_disasm(&args);
-    cr_assert_neq(strlen(buf), 0);
-    cr_assert_eq(mach->disasm, true);
-}
-
 Test(apple2_debug, cmd_dblock)
 {
     mos6502_set(mach->cpu, 0, 0xEA);