diff --git a/src/resources/themes/v_moonlight/v_moonlight.qss b/src/resources/themes/v_moonlight/v_moonlight.qss
index 49a9c756..5a4a79db 100644
--- a/src/resources/themes/v_moonlight/v_moonlight.qss
+++ b/src/resources/themes/v_moonlight/v_moonlight.qss
@@ -708,24 +708,27 @@ QTabBar::tab {
     color: @tabbar_fg;
     background: @tabbar_bg;
     border: none;
-    padding: $2px;
 }
 
 QTabBar::tab:top, QTabBar::tab:bottom {
     border-top: $2px solid transparent;
     border-right: $1px solid @tabbar_border;
+    /* MUST leave right and left padding 0px. */
+    padding: $2px 0px $2px 0px;
     height: $20px;
 }
 
 QTabBar::tab:right {
     border-left: $3px solid transparent;
     border-bottom: $1px solid @tabbar_border;
+    padding: $5px $2px $5px $2px;
     min-width: $20px;
 }
 
 QTabBar::tab:left {
     border-right: $3px solid transparent;
     border-bottom: $1px solid @tabbar_border;
+    padding: $5px $2px $5px $2px;
     min-width: $20px;
 }
 
diff --git a/src/resources/themes/v_pure/v_pure.qss b/src/resources/themes/v_pure/v_pure.qss
index 40c882e5..508b3d3f 100644
--- a/src/resources/themes/v_pure/v_pure.qss
+++ b/src/resources/themes/v_pure/v_pure.qss
@@ -708,24 +708,27 @@ QTabBar::tab {
     color: @tabbar_fg;
     background: @tabbar_bg;
     border: none;
-    padding: $2px;
 }
 
 QTabBar::tab:top, QTabBar::tab:bottom {
     border-top: $2px solid transparent;
     border-right: $1px solid @tabbar_border;
+    /* MUST leave right and left padding 0px. */
+    padding: $2px 0px $2px 0px;
     height: $20px;
 }
 
 QTabBar::tab:right {
     border-left: $3px solid transparent;
     border-bottom: $1px solid @tabbar_border;
+    padding: $5px $2px $5px $2px;
     min-width: $20px;
 }
 
 QTabBar::tab:left {
     border-right: $3px solid transparent;
     border-bottom: $1px solid @tabbar_border;
+    padding: $5px $2px $5px $2px;
     min-width: $20px;
 }