diff --git a/dark/variants/a11y/xfwm4/themerc b/dark/variants/a11y/xfwm4/themerc
index 960c52ac..dd4cdec2 100644
--- a/dark/variants/a11y/xfwm4/themerc
+++ b/dark/variants/a11y/xfwm4/themerc
@@ -24,3 +24,4 @@ shadow_opacity=50
 
 maximized_offset=3
 show_app_icon=false
+frame_border_top=1
diff --git a/dark/xfwm4/themerc b/dark/xfwm4/themerc
index 39b845f1..2e409a40 100644
--- a/dark/xfwm4/themerc
+++ b/dark/xfwm4/themerc
@@ -23,3 +23,4 @@ shadow_delta_width=0
 shadow_delta_x=0
 shadow_delta_y=-10
 shadow_opacity=50
+frame_border_top=1
diff --git a/light/variants/a11y/xfwm4/themerc b/light/variants/a11y/xfwm4/themerc
index be711330..01f69d68 100644
--- a/light/variants/a11y/xfwm4/themerc
+++ b/light/variants/a11y/xfwm4/themerc
@@ -26,3 +26,4 @@ shadow_opacity=50
 
 maximized_offset=3
 show_app_icon=false
+frame_border_top=1
diff --git a/light/variants/compact/xfwm4/themerc b/light/variants/compact/xfwm4/themerc
index 56b58b98..2b909ab5 100644
--- a/light/variants/compact/xfwm4/themerc
+++ b/light/variants/compact/xfwm4/themerc
@@ -20,3 +20,4 @@ shadow_delta_width=0
 shadow_delta_x=0
 shadow_delta_y=-8
 shadow_opacity=50
+frame_border_top=1
diff --git a/light/xfwm4/themerc b/light/xfwm4/themerc
index deb51a33..10f7ac92 100644
--- a/light/xfwm4/themerc
+++ b/light/xfwm4/themerc
@@ -22,3 +22,4 @@ shadow_delta_width=0
 shadow_delta_x=0
 shadow_delta_y=-10
 shadow_opacity=50
+frame_border_top=1