diff --git a/src/cthulhu/cmdnames.py b/src/cthulhu/cmdnames.py
index 66afd7a..f62959c 100644
--- a/src/cthulhu/cmdnames.py
+++ b/src/cthulhu/cmdnames.py
@@ -460,6 +460,9 @@ TOGGLE_SPEECH = _("Toggle the silencing of speech")
 # This string describes that command.
 TOGGLE_SPEECH_VERBOSITY = _("Toggle speech verbosity level")
 
+# Translators: this string is associated with the keyboard shortcut to toggle sleepmode
+TOGGLE_SLEEP_MODE = _("Toggle sleep mode")
+
 # Translators: this string is associated with the keyboard shortcut to quit
 # Cthulhu.
 QUIT_CTHULHU = _("Quit the screen reader")
diff --git a/src/cthulhu/common_keyboardmap.py b/src/cthulhu/common_keyboardmap.py
index 400ae0a..d768a86 100644
--- a/src/cthulhu/common_keyboardmap.py
+++ b/src/cthulhu/common_keyboardmap.py
@@ -57,7 +57,7 @@ keymap = (
     ("BackSpace", defaultModifierMask, CTHULHU_MODIFIER_MASK,
     "bypassNextCommandHandler"),
 
-    ("q", defaultModifierMask, CTHULHU_CTRL_ALT_MODIFIER_MASK | SHIFT_ALT_MODIFIER_MASK,
+    ("q", defaultModifierMask, CTHULHU_CTRL_ALT_MODIFIER_MASK | CTHULHU_SHIFT_MODIFIER_MASK,
     "toggleSleepModeHandler"),
 
     ("q", defaultModifierMask, CTHULHU_MODIFIER_MASK,
diff --git a/src/cthulhu/scripts/default.py b/src/cthulhu/scripts/default.py
index 5a19f7a..f0607bf 100644
--- a/src/cthulhu/scripts/default.py
+++ b/src/cthulhu/scripts/default.py
@@ -204,6 +204,11 @@ class Script(script.Script):
                 Script.processBrailleCutLine,
                 cmdnames.PROCESS_BRAILLE_CUT_LINE)
 
+        self.inputEventHandlers["toggleSleepModeHandler"] = \
+            input_event.InputEventHandler(
+                Script.toggleSleepMode,
+                cmdnames.TOGGLE_SLEEP_MODE)
+
         self.inputEventHandlers["shutdownHandler"] = \
             input_event.InputEventHandler(
                 cthulhu.quitCthulhu,