diff --git a/config.def.h b/config.def.h
index 1615386..ea7fb28 100644
--- a/config.def.h
+++ b/config.def.h
@@ -182,6 +182,11 @@ static uint forcemousemod = ShiftMask;
  */
 const unsigned int mousescrollrate = 1;
 
+/*
+ * The rate to zoom in (adjust the font size).
+ */
+const int zoomrate = 1;
+
 /*
  * Internal mouse shortcuts.
  * Beware that overloading Button1 will disable the selection.
@@ -207,8 +212,8 @@ 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_Prior,       zoom,           {.f = +1} },
-	{ TERMMOD,              XK_Next,        zoom,           {.f = -1} },
+	{ TERMMOD,              XK_Prior,       zoom,           {.f = zoomrate * +1} },
+	{ TERMMOD,              XK_Next,        zoom,           {.f = zoomrate * -1} },
 	{ TERMMOD,              XK_Home,        zoomreset,      {.f =  0} },
 	{ TERMMOD,              XK_C,           clipcopy,       {.i =  0} },
 	{ TERMMOD,              XK_V,           clippaste,      {.i =  0} },