diff --git a/config.def.h b/config.def.h
index 44f42e0..e0d1e8a 100644
--- a/config.def.h
+++ b/config.def.h
@@ -191,8 +191,8 @@ static Shortcut shortcuts[] = {
 	{ ControlMask,          XK_Print,       toggleprinter,  {.i =  0} },
 	{ ShiftMask,            XK_Print,       printscreen,    {.i =  0} },
 	{ XK_ANY_MOD,           XK_Print,       printsel,       {.i =  0} },
-	{ Mod4Mask,             XK_plus,        zoom,           {.f = +1} },
-	{ Mod4Mask,             XK_minus,       zoom,           {.f = -1} },
+	{ ControlMask,          XK_plus,        zoom,           {.f = +1} },
+	{ ControlMask,          XK_minus,       zoom,           {.f = -1} },
 	{ TERMMOD,              XK_Home,        zoomreset,      {.f =  0} },
 	{ TERMMOD,              XK_C,           clipcopy,       {.i =  0} },
 	{ TERMMOD,              XK_V,           clippaste,      {.i =  0} },