diff --git a/builds/appchan-x.js b/builds/appchan-x.js
index e5689c7a6..65ecbdb4e 100644
--- a/builds/appchan-x.js
+++ b/builds/appchan-x.js
@@ -12905,7 +12905,7 @@
     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/appchan-x.user.js b/builds/appchan-x.user.js
index a491e913e..4d4b1e267 100644
--- a/builds/appchan-x.user.js
+++ b/builds/appchan-x.user.js
@@ -12914,7 +12914,7 @@
     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 4a2cf484f..43acbac90 100644
--- a/builds/crx/script.js
+++ b/builds/crx/script.js
@@ -12896,7 +12896,7 @@
     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 94ab8d34e..eb1a261f9 100644
--- a/src/Miscellaneous/Nav.coffee
+++ b/src/Miscellaneous/Nav.coffee
@@ -37,7 +37,7 @@ 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()