diff --git a/src/dwm.c b/src/dwm.c
index eb423c5..630871f 100644
--- a/src/dwm.c
+++ b/src/dwm.c
@@ -214,7 +214,7 @@ static void monocle(Monitor *m);
 static void motionnotify(XEvent *e);
 static void movemouse(const Arg *arg);
 static Client *nexttiled(Client *c);
-static void pop(Client *c);
+static void pop(Client *);
 static void propertynotify(XEvent *e);
 static void quit(const Arg *arg);
 static Monitor *recttomon(int x, int y, int w, int h);
@@ -243,7 +243,7 @@ static void spawn(const Arg *arg);
 static Monitor *systraytomon(Monitor *m);
 static void tag(const Arg *arg);
 static void tagmon(const Arg *arg);
-static void tile(Monitor *m);
+static void tile(Monitor *);
 static void togglebar(const Arg *arg);
 static void togglefloating(const Arg *arg);
 static void togglesticky(const Arg *arg);
@@ -276,8 +276,8 @@ static void zoom(const Arg *arg);
 static void autostart_exec(void);
 
 /* variables */
-static const char broken[] = "broken";
 static Systray *systray = NULL;
+static const char broken[] = "broken";
 static char stext[256];
 static int screen;
 static int sw, sh;           /* X display screen geometry width, height */
@@ -1823,7 +1823,7 @@ setmfact(const Arg *arg)
 	f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
 	if (f < 0.05 || f > 0.95)
 		return;
-	selmon->mfact = f;
+	selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag] = f;
 	arrange(selmon);
 }
 
@@ -1835,8 +1835,6 @@ setup(void)
 	Atom utf8string;
 
 	/* clean up any zombies immediately */
-	if (signal(SIGCHLD, sigchld) == SIG_ERR)
-		die("can't install SIGCHLD handler:");
 	sigchld(0);
 
 	/* init screen */