diff --git a/src/HotCorners/HotCorner.vala b/src/HotCorners/HotCorner.vala
index 409f7afc..13450583 100644
--- a/src/HotCorners/HotCorner.vala
+++ b/src/HotCorners/HotCorner.vala
@@ -62,8 +62,8 @@ public class Gala.HotCorner : Object {
     private bool triggered = false;
     private uint32 triggered_time;
 
-    public HotCorner (Meta.Display display, float x, float y, string hot_corner_position) {
-        add_barriers (display, x, y, hot_corner_position);
+    public HotCorner (Meta.Display display, float x, float y, float scale, string hot_corner_position) {
+        add_barriers (display, x, y, scale, hot_corner_position);
     }
 
     public void destroy_barriers () {
@@ -76,9 +76,9 @@ public class Gala.HotCorner : Object {
         }
     }
 
-    private void add_barriers (Meta.Display display, float x, float y, string hot_corner_position) {
-        var vrect = get_barrier_rect (x, y, hot_corner_position, Clutter.Orientation.VERTICAL);
-        var hrect = get_barrier_rect (x, y, hot_corner_position, Clutter.Orientation.HORIZONTAL);
+    private void add_barriers (Meta.Display display, float x, float y, float scale, string hot_corner_position) {
+        var vrect = get_barrier_rect (x, y, scale, hot_corner_position, Clutter.Orientation.VERTICAL);
+        var hrect = get_barrier_rect (x, y, scale, hot_corner_position, Clutter.Orientation.HORIZONTAL);
         var vdir = get_barrier_direction (hot_corner_position, Clutter.Orientation.VERTICAL);
         var hdir = get_barrier_direction (hot_corner_position, Clutter.Orientation.HORIZONTAL);
 
@@ -107,9 +107,8 @@ public class Gala.HotCorner : Object {
         }
     }
 
-    private static Meta.Rectangle get_barrier_rect (float x, float y, string hot_corner_position, Clutter.Orientation orientation) {
-        var scale = InternalUtils.get_ui_scaling_factor ();
-        var barrier_size = BARRIER_SIZE * scale;
+    private static Meta.Rectangle get_barrier_rect (float x, float y, float scale, string hot_corner_position, Clutter.Orientation orientation) {
+        var barrier_size = InternalUtils.scale_to_int (BARRIER_SIZE, scale);
 
         int x1 = (int) x;
         int y1 = (int) y;
diff --git a/src/HotCorners/HotCornerManager.vala b/src/HotCorners/HotCornerManager.vala
index ff45c44b..b7aed8bd 100644
--- a/src/HotCorners/HotCornerManager.vala
+++ b/src/HotCorners/HotCornerManager.vala
@@ -40,13 +40,15 @@ public class Gala.HotCornerManager : Object {
             return;
         }
 
-        var geometry = display.get_monitor_geometry (display.get_primary_monitor ());
+        var primary = display.get_primary_monitor ();
+        var geometry = display.get_monitor_geometry (primary);
+        var scale = display.get_monitor_scale (primary);
 
         remove_all_hot_corners ();
-        add_hotcorner (geometry.x, geometry.y, HotCorner.POSITION_TOP_LEFT);
-        add_hotcorner (geometry.x + geometry.width, geometry.y, HotCorner.POSITION_TOP_RIGHT);
-        add_hotcorner (geometry.x, geometry.y + geometry.height, HotCorner.POSITION_BOTTOM_LEFT);
-        add_hotcorner (geometry.x + geometry.width, geometry.y + geometry.height, HotCorner.POSITION_BOTTOM_RIGHT);
+        add_hotcorner (geometry.x, geometry.y, scale, HotCorner.POSITION_TOP_LEFT);
+        add_hotcorner (geometry.x + geometry.width, geometry.y, scale, HotCorner.POSITION_TOP_RIGHT);
+        add_hotcorner (geometry.x, geometry.y + geometry.height, scale, HotCorner.POSITION_BOTTOM_LEFT);
+        add_hotcorner (geometry.x + geometry.width, geometry.y + geometry.height, scale, HotCorner.POSITION_BOTTOM_RIGHT);
 
         this.on_configured ();
     }
@@ -59,14 +61,14 @@ public class Gala.HotCornerManager : Object {
         hot_corners.remove_range (0, hot_corners.length);
     }
 
-    private void add_hotcorner (float x, float y, string hot_corner_position) {
+    private void add_hotcorner (float x, float y, float scale, string hot_corner_position) {
         var action_type = (ActionType) behavior_settings.get_enum (hot_corner_position);
         if (action_type == ActionType.NONE) {
             return;
         }
 
         unowned Meta.Display display = wm.get_display ();
-        var hot_corner = new HotCorner (display, (int) x, (int) y, hot_corner_position);
+        var hot_corner = new HotCorner (display, (int) x, (int) y, scale, hot_corner_position);
 
         hot_corner.trigger.connect (() => {
             if (action_type == ActionType.CUSTOM_COMMAND) {