diff --git a/config.conf b/config.conf
index 19fd311..af9443e 100644
--- a/config.conf
+++ b/config.conf
@@ -20,6 +20,7 @@ scroller_structs=20
 scroller_default_proportion=0.8
 scroller_focus_center=0
 scroller_prefer_center=0
+scroller_default_proportion_single=1.0
 scroller_proportion_preset=0.5,0.8,1.0
 
 # Master-Stack Layout Setting (tile,spiral,dwindle)
diff --git a/maomao.c b/maomao.c
index 41227c4..e799667 100644
--- a/maomao.c
+++ b/maomao.c
@@ -5969,7 +5969,7 @@ void scroller(Monitor *m, unsigned int gappo, unsigned int gappi) {
   if (n == 1) {
     c = tempClients[0];
     target_geom.height = m->w.height - 2 * gappov;
-    target_geom.width = max_client_width * c->scroller_proportion;
+    target_geom.width = (m->w.width - 2 * gappoh) * scroller_default_proportion_single;
     target_geom.x = m->w.x + (m->w.width - target_geom.width) / 2;
     target_geom.y = m->w.y + (m->w.height - target_geom.height) / 2;
     resize(c, target_geom, 0);
diff --git a/parse_config.h b/parse_config.h
index 85512a7..e821acd 100644
--- a/parse_config.h
+++ b/parse_config.h
@@ -102,6 +102,7 @@ typedef struct {
 
   int scroller_structs;
   float scroller_default_proportion;
+  float scroller_default_proportion_single;
   int scroller_focus_center;
   int scroller_prefer_center;
   int focus_cross_monitor;
@@ -552,6 +553,8 @@ void parse_config_line(Config *config, const char *line) {
     config->scroller_structs = atoi(value);
   } else if (strcmp(key, "scroller_default_proportion") == 0) {
     config->scroller_default_proportion = atof(value);
+  } else if (strcmp(key, "scroller_default_proportion_single") == 0) {
+    config->scroller_default_proportion_single = atof(value);
   } else if (strcmp(key, "scroller_focus_center") == 0) {
     config->scroller_focus_center = atoi(value);
   } else if (strcmp(key, "scroller_prefer_center") == 0) {
@@ -1187,6 +1190,7 @@ void override_config(void) {
 
   scroller_structs = config.scroller_structs;
   scroller_default_proportion = config.scroller_default_proportion;
+  scroller_default_proportion_single = config.scroller_default_proportion_single;
   scroller_focus_center = config.scroller_focus_center;
   focus_cross_monitor = config.focus_cross_monitor;
   swipe_min_threshold = config.swipe_min_threshold;
@@ -1269,6 +1273,7 @@ void set_value_default() {
 
   config.scroller_structs = scroller_structs;
   config.scroller_default_proportion = scroller_default_proportion;
+  config.scroller_default_proportion_single = scroller_default_proportion_single;
   config.scroller_focus_center = scroller_focus_center;
   config.scroller_prefer_center = scroller_prefer_center;
   config.focus_cross_monitor = focus_cross_monitor;
diff --git a/preset_config.h b/preset_config.h
index fd95a9d..5964e2c 100644
--- a/preset_config.h
+++ b/preset_config.h
@@ -45,6 +45,7 @@ unsigned int gappov = 10; /* vert outer gap between windows and screen edge */
 
 int scroller_structs = 20;
 float scroller_default_proportion = 0.9;
+float scroller_default_proportion_single = 1.0;
 int scroller_focus_center = 0;
 int scroller_prefer_center = 0;
 int focus_cross_monitor = 0;