diff --git a/builds/4chan-X.js b/builds/4chan-X.js
index 3e06d506a..b2d5e58dd 100644
--- a/builds/4chan-X.js
+++ b/builds/4chan-X.js
@@ -8970,7 +8970,7 @@
     getThread: function(full) {
       var headRect, i, rect, thread, threads, topMargin, _i, _len;
 
-      if (Conf['Bottom header']) {
+      if (Conf['Bottom header'] || !Conf['Fixed Header']) {
         topMargin = 0;
       } else {
         headRect = Header.bar.getBoundingClientRect();
diff --git a/builds/4chan-X.user.js b/builds/4chan-X.user.js
index bf071c52f..ed2bf1936 100644
--- a/builds/4chan-X.user.js
+++ b/builds/4chan-X.user.js
@@ -8979,7 +8979,7 @@
     getThread: function(full) {
       var headRect, i, rect, thread, threads, topMargin, _i, _len;
 
-      if (Conf['Bottom header']) {
+      if (Conf['Bottom header'] || !Conf['Fixed Header']) {
         topMargin = 0;
       } else {
         headRect = Header.bar.getBoundingClientRect();
diff --git a/builds/crx/script.js b/builds/crx/script.js
index 60f55004e..3b7c1e17d 100644
--- a/builds/crx/script.js
+++ b/builds/crx/script.js
@@ -8962,7 +8962,7 @@
     getThread: function(full) {
       var headRect, i, rect, thread, threads, topMargin, _i, _len;
 
-      if (Conf['Bottom header']) {
+      if (Conf['Bottom header'] || !Conf['Fixed Header']) {
         topMargin = 0;
       } else {
         headRect = Header.bar.getBoundingClientRect();
diff --git a/src/Miscellaneous/Nav.coffee b/src/Miscellaneous/Nav.coffee
index fa78f8784..ac1fdc10d 100644
--- a/src/Miscellaneous/Nav.coffee
+++ b/src/Miscellaneous/Nav.coffee
@@ -39,7 +39,7 @@ Nav =
       Nav.scroll +1
 
   getThread: (full) ->
-    if Conf['Bottom header']
+    if Conf['Bottom header'] or !Conf['Fixed Header']
       topMargin = 0
     else
       headRect  = Header.bar.getBoundingClientRect()