diff --git a/gtk-3.0/gtk-dark.css b/gtk-3.0/gtk-dark.css
index b3ff469..13732e6 100755
--- a/gtk-3.0/gtk-dark.css
+++ b/gtk-3.0/gtk-dark.css
@@ -2576,8 +2576,8 @@ headerbar {
     min-height: 20px; }
     .default-decoration.titlebar button.titlebutton,
     headerbar.default-decoration button.titlebutton {
-      min-height: 19px;
-      min-width: 19px;
+      min-height: 20px;
+      min-width: 20px;
       margin: 0;
       padding: 0; }
 
diff --git a/gtk-3.0/gtk.css b/gtk-3.0/gtk.css
index 67865f6..6890c67 100755
--- a/gtk-3.0/gtk.css
+++ b/gtk-3.0/gtk.css
@@ -2583,8 +2583,8 @@ headerbar {
     min-height: 20px; }
     .default-decoration.titlebar button.titlebutton,
     headerbar.default-decoration button.titlebutton {
-      min-height: 19px;
-      min-width: 19px;
+      min-height: 20px;
+      min-width: 20px;
       margin: 0;
       padding: 0; }
 
diff --git a/gtk-3.0/widgets/_header-bars.scss b/gtk-3.0/widgets/_header-bars.scss
index d965fbe..307e8aa 100644
--- a/gtk-3.0/widgets/_header-bars.scss
+++ b/gtk-3.0/widgets/_header-bars.scss
@@ -217,8 +217,8 @@ headerbar {
     min-height: 20px;
 
     button.titlebutton {
-      min-height: 19px;
-      min-width: 19px;
+      min-height: 20px;
+      min-width: 20px;
       margin: 0;
       padding: 0;
     }