diff --git a/calmwm.h b/calmwm.h
index 7697b75..d6779f7 100644
--- a/calmwm.h
+++ b/calmwm.h
@@ -313,6 +313,7 @@ struct conf {
 	int			 nameqlen;
 	int			 bwidth;
 	int			 mamount;
+	int			 scalefactor;
 	int			 snapdist;
 	int			 htile;
 	int			 vtile;
diff --git a/conf.c b/conf.c
index fee6e9d..2db89a9 100644
--- a/conf.c
+++ b/conf.c
@@ -288,6 +288,7 @@ conf_init(struct conf *c)
 	c->stickygroups = 0;
 	c->bwidth = 1;
 	c->mamount = 1;
+	c->scalefactor = 10;
 	c->htile = 50;
 	c->vtile = 50;
 	c->snapdist = 0;
diff --git a/kbfunc.c b/kbfunc.c
index b6f6355..acde773 100644
--- a/kbfunc.c
+++ b/kbfunc.c
@@ -57,7 +57,7 @@ kbfunc_cwm_status(void *ctx, struct cargs *cargs)
 static void
 kbfunc_amount(int flags, int amt, int *mx, int *my)
 {
-#define CWM_FACTOR 10
+#define CWM_FACTOR Conf.scalefactor
 
 	if (flags & CWM_BIGAMOUNT)
 		amt *= CWM_FACTOR;
diff --git a/parse.y b/parse.y
index d0407a7..45aee3d 100644
--- a/parse.y
+++ b/parse.y
@@ -73,7 +73,7 @@ typedef struct {
 %token	BINDKEY UNBINDKEY BINDMOUSE UNBINDMOUSE
 %token	FONTNAME STICKY GAP
 %token	AUTOGROUP COMMAND IGNORE WM
-%token	YES NO BORDERWIDTH MOVEAMOUNT HTILE VTILE
+%token	YES NO BORDERWIDTH MOVEAMOUNT SCALEFACTOR HTILE VTILE
 %token	COLOR SNAPDIST
 %token	ACTIVEBORDER INACTIVEBORDER URGENCYBORDER
 %token	GROUPBORDER UNGROUPBORDER
@@ -156,6 +156,13 @@ main		: FONTNAME STRING		{
 			}
 			conf->mamount = $2;
 		}
+		| SCALEFACTOR NUMBER {
+			if ($2 < 0 || $2 > INT_MAX) {
+				yyerror("invalid scalefactor");
+				YYERROR;
+			}
+			conf->scalefactor = $2;
+		}
 		| SNAPDIST NUMBER {
 			if ($2 < 0 || $2 > INT_MAX) {
 				yyerror("invalid snapdist");
@@ -350,6 +357,7 @@ lookup(char *s)
 		{ "menufg",		MENUFG},
 		{ "moveamount",		MOVEAMOUNT},
 		{ "no",			NO},
+		{ "scalefactor",	SCALEFACTOR},
 		{ "selfont", 		FONTSELCOLOR},
 		{ "snapdist",		SNAPDIST},
 		{ "sticky",		STICKY},