diff --git a/st-config.h b/st-config.h
index 22f7773..f87cbf2 100644
--- a/st-config.h
+++ b/st-config.h
@@ -252,8 +252,8 @@ static Shortcut shortcuts[] = {
 	{ ControlMask,          XK_Print,       toggleprinter,  {.i =  0} },
 	{ ShiftMask,            XK_Print,       printscreen,    {.i =  0} },
 	{ XK_ANY_MOD,           XK_Print,       printsel,       {.i =  0} },
-	{ TERMMOD,              XK_Up,     			zoom,           {.f = +1} },
-	{ TERMMOD,              XK_Down,   			zoom,           {.f = -1} },
+	{ ShiftMask,              XK_Up,     			zoom,           {.f = +1} },
+	{ ShiftMask,              XK_Down,   			zoom,           {.f = -1} },
 	{ TERMMOD,              XK_Home,        zoomreset,      {.f =  0} },
 	{ ControlMask|ShiftMask,              XK_C,           clipcopy,       {.i =  0} },
 	{ ControlMask|ShiftMask,              XK_V,           clippaste,      {.i =  0} },
@@ -531,4 +531,3 @@ static char ascii_printable[] =
 	" !\"#$%&'()*+,-./0123456789:;<=>?"
 	"@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"
 	"`abcdefghijklmnopqrstuvwxyz{|}~";
-