diff --git a/doc/apple2.sgml b/doc/apple2.sgml
index 822dd564e..43651c7fa 100644
--- a/doc/apple2.sgml
+++ b/doc/apple2.sgml
@@ -470,8 +470,7 @@ BASIC.SYSTEM) there are some limitations for DOS 3.3:
   <tag/Interrupts/
   There's no <tt/interruptor/ support. Any attempt to use it yields the message
   'FAILED TO ALLOC INTERRUPT' on program startup. This implicitly means that
-  joystick, mouse and RS232 device drivers are not functional as they depend on
-  interrupts.
+  mouse and RS232 device drivers are not functional as they depend on interrupts.
 
 </descrip><p>
 
diff --git a/doc/apple2enh.sgml b/doc/apple2enh.sgml
index 3a53b6b8c..3f335d028 100644
--- a/doc/apple2enh.sgml
+++ b/doc/apple2enh.sgml
@@ -471,8 +471,7 @@ BASIC.SYSTEM) there are some limitations for DOS 3.3:
   <tag/Interrupts/
   There's no <tt/interruptor/ support. Any attempt to use it yields the message
   'Failed to alloc interrupt' on program startup. This implicitly means that
-  joystick, mouse and RS232 device drivers are not functional as they depend on
-  interrupts.
+  mouse and RS232 device drivers are not functional as they depend on interrupts.
 
 </descrip><p>