diff --git a/config.def.h b/config.def.h
index 3cdcf26..e251649 100644
--- a/config.def.h
+++ b/config.def.h
@@ -86,6 +86,7 @@ static Key keys[] = {
 	{ MODKEY,                       XK_c,      setlayout,      {.v = &layouts[3]} },
 	{ MODKEY,                       XK_space,  setlayout,      {0} },
 	{ MODKEY|ShiftMask,             XK_space,  togglefloating, {0} },
+	{ MODKEY|ShiftMask,             XK_f,      togglefullscr,  {0} },
 	{ MODKEY,                       XK_0,      view,           {.ui = ~0 } },
 	{ MODKEY|ShiftMask,             XK_0,      tag,            {.ui = ~0 } },
 	{ MODKEY,                       XK_comma,  focusmon,       {.i = -1 } },
diff --git a/dwm.c b/dwm.c
index 29419d2..59ea47f 100644
--- a/dwm.c
+++ b/dwm.c
@@ -258,6 +258,7 @@ static Client *termforwin(const Client *c);
 static void tile(Monitor *);
 static void togglebar(const Arg *arg);
 static void togglefloating(const Arg *arg);
+static void togglefullscr(const Arg *arg);
 static void toggletag(const Arg *arg);
 static void toggleview(const Arg *arg);
 static void unfocus(Client *c, int setfocus);
@@ -2052,6 +2053,13 @@ togglefloating(const Arg *arg)
 	arrange(selmon);
 }
 
+void
+togglefullscr(const Arg *arg)
+{
+  if(selmon->sel)
+    setfullscreen(selmon->sel, !selmon->sel->isfullscreen);
+}
+
 void
 toggletag(const Arg *arg)
 {