diff --git a/src/gtk-3.20/scss/widgets/_notebook.scss b/src/gtk-3.20/scss/widgets/_notebook.scss
index f5cc77a..da98dbb 100644
--- a/src/gtk-3.20/scss/widgets/_notebook.scss
+++ b/src/gtk-3.20/scss/widgets/_notebook.scss
@@ -155,7 +155,7 @@
                 > box,
                 > label,
                 > widget > box {
-                    padding: ($spacing - 1px) ($spacing * 2); // top/bottom | left/right
+                    padding: ($spacing - 1px) (($spacing - 1px) * 2); // top/bottom | left/right
                     border-width: 2px;
                     border-style: solid;
                     border-color: transparent;
@@ -166,7 +166,7 @@
                     > box,
                     > label,
                     > widget > box {
-                        padding: ($spacing - 1px) ($spacing * 2) ($spacing - 1px) ($spacing * 3); // top | right | bottom | left
+                        padding: ($spacing - 1px) (($spacing - 1px) * 2); // top | right | bottom | left
                     }
                 }