diff --git a/desktop/README.md b/desktop/README.md
index a7d3e08..856467a 100644
--- a/desktop/README.md
+++ b/desktop/README.md
@@ -53,7 +53,7 @@ moving them to the appropriate destination in aux/banked/main memory.
 There's fourth chunk of code, which expects to live at $280 so it
 can't co-exist with the Invoker; it may be temporary code, as there is
 no sign that it is ever moved into place. It's also unclear how it
-would be hooked in. The routine detects OA+CA+P and prints the DHR
+would be hooked in. The routine detects OA+SA+P and prints the DHR
 screen to an ImageWriter II printer attached to Slot 1. (This may have
 been used to produce screenshots during development for manuals.)
 
diff --git a/desktop/desktop_main.s b/desktop/desktop_main.s
index 27607cd..824d808 100644
--- a/desktop/desktop_main.s
+++ b/desktop/desktop_main.s
@@ -464,9 +464,9 @@ flag:   .byte   $00
         ;; Handle accelerator keys
 handle_keydown:
         lda     event_modifiers
-        bne     :+              ; either OA or CA ?
+        bne     :+              ; either OA or SA ?
         jmp     menu_accelerators           ; nope
-:       cmp     #3              ; both OA + CA ?
+:       cmp     #3              ; both OA + SA ?
         bne     :+              ; nope
         rts