diff --git a/builds/4chan-X.js b/builds/4chan-X.js
index 2c94676e7..cc36717b5 100644
--- a/builds/4chan-X.js
+++ b/builds/4chan-X.js
@@ -2113,6 +2113,8 @@
         dy: e.clientY - rect.top,
         height: screenHeight - rect.height,
         width: screenWidth - rect.width,
+        topBorder: Conf["Bottom Header"] ? 0 : Header.bar.getBoundingClientRect().height,
+        bottomBorder: Conf["Bottom Header"] ? Header.bar.getBoundingClientRect().height : 0,
         screenHeight: screenHeight,
         screenWidth: screenWidth,
         isTouching: isTouching
@@ -2149,9 +2151,9 @@
       left = clientX - this.dx;
       left = left < 10 ? 0 : this.width - left < 10 ? null : left / this.screenWidth * 100 + '%';
       top = clientY - this.dy;
-      top = top < 10 ? 0 : this.height - top < 10 ? null : top / this.screenHeight * 100 + '%';
+      top = top < (10 + this.topBorder) ? this.topBorder + 'px' : this.height - top < (10 + this.bottomBorder) ? null : top / this.screenHeight * 100 + '%';
       right = left === null ? 0 : null;
-      bottom = top === null ? 0 : null;
+      bottom = top === null ? this.bottomBorder + 'px' : null;
       style = this.style;
       style.left = left;
       style.right = right;
diff --git a/builds/4chan-X.user.js b/builds/4chan-X.user.js
index cf91966ee..39bdef7a7 100644
--- a/builds/4chan-X.user.js
+++ b/builds/4chan-X.user.js
@@ -2109,6 +2109,8 @@
         dy: e.clientY - rect.top,
         height: screenHeight - rect.height,
         width: screenWidth - rect.width,
+        topBorder: Conf["Bottom Header"] ? 0 : Header.bar.getBoundingClientRect().height,
+        bottomBorder: Conf["Bottom Header"] ? Header.bar.getBoundingClientRect().height : 0,
         screenHeight: screenHeight,
         screenWidth: screenWidth,
         isTouching: isTouching
@@ -2145,9 +2147,9 @@
       left = clientX - this.dx;
       left = left < 10 ? 0 : this.width - left < 10 ? null : left / this.screenWidth * 100 + '%';
       top = clientY - this.dy;
-      top = top < 10 ? 0 : this.height - top < 10 ? null : top / this.screenHeight * 100 + '%';
+      top = top < (10 + this.topBorder) ? this.topBorder + 'px' : this.height - top < (10 + this.bottomBorder) ? null : top / this.screenHeight * 100 + '%';
       right = left === null ? 0 : null;
-      bottom = top === null ? 0 : null;
+      bottom = top === null ? this.bottomBorder + 'px' : null;
       style = this.style;
       style.left = left;
       style.right = right;
diff --git a/builds/crx/script.js b/builds/crx/script.js
index 548aec8cc..bad35abf9 100644
--- a/builds/crx/script.js
+++ b/builds/crx/script.js
@@ -2022,6 +2022,8 @@
         dy: e.clientY - rect.top,
         height: screenHeight - rect.height,
         width: screenWidth - rect.width,
+        topBorder: Conf["Bottom Header"] ? 0 : Header.bar.getBoundingClientRect().height,
+        bottomBorder: Conf["Bottom Header"] ? Header.bar.getBoundingClientRect().height : 0,
         screenHeight: screenHeight,
         screenWidth: screenWidth,
         isTouching: isTouching
@@ -2058,9 +2060,9 @@
       left = clientX - this.dx;
       left = left < 10 ? 0 : this.width - left < 10 ? null : left / this.screenWidth * 100 + '%';
       top = clientY - this.dy;
-      top = top < 10 ? 0 : this.height - top < 10 ? null : top / this.screenHeight * 100 + '%';
+      top = top < (10 + this.topBorder) ? this.topBorder + 'px' : this.height - top < (10 + this.bottomBorder) ? null : top / this.screenHeight * 100 + '%';
       right = left === null ? 0 : null;
-      bottom = top === null ? 0 : null;
+      bottom = top === null ? this.bottomBorder + 'px' : null;
       style = this.style;
       style.left = left;
       style.right = right;
diff --git a/src/General/UI.coffee b/src/General/UI.coffee
index b2fff3393..aa4ef9f5f 100644
--- a/src/General/UI.coffee
+++ b/src/General/UI.coffee
@@ -222,6 +222,8 @@ UI = do ->
       dy:     e.clientY - rect.top
       height: screenHeight - rect.height
       width:  screenWidth  - rect.width
+      topBorder:    if Conf["Bottom Header"] then 0 else Header.bar.getBoundingClientRect().height
+      bottomBorder: if Conf["Bottom Header"] then Header.bar.getBoundingClientRect().height else 0
       screenHeight: screenHeight
       screenWidth:  screenWidth
       isTouching:   isTouching
@@ -254,9 +256,9 @@ UI = do ->
       left / @screenWidth * 100 + '%'
 
     top = clientY - @dy
-    top = if top < 10
-      0
-    else if @height - top < 10
+    top = if top < (10 + @topBorder)
+      @topBorder + 'px'
+    else if @height - top < (10 + @bottomBorder)
       null
     else
       top / @screenHeight * 100 + '%'
@@ -265,8 +267,9 @@ UI = do ->
       0
     else
       null
+
     bottom = if top is null
-      0
+      @bottomBorder + 'px'
     else
       null