diff --git a/center-content.el b/center-content.el
index 6b2828d..63f3a1a 100644
--- a/center-content.el
+++ b/center-content.el
@@ -43,17 +43,16 @@
          (left-margin (center-content--calculate-left-margin (car content-size)))
          (top-margin (center-content--calculate-top-margin (cdr content-size))))
     ;; Apply horizontal centering using overlay
-    (let ((overlay (make-overlay (point-min) (point-max))))
-      (overlay-put overlay 'line-prefix
-                   (propertize " " 'display `(space :width ,left-margin)))
+    (let ((overlay (make-overlay (point-min) (point-max)))
+          (space (propertize " " 'display `(space :width ,left-margin))))
+      (overlay-put overlay 'line-prefix space)
       (setq center-content--horizontal-overlay overlay))
     ;; Apply vertical centering using header-line-format
     ;; Save and remap the header-line face to match the default face
     (setq center-content--original-header-line-format header-line-format)
     (setq center-content--header-line-face-remap-cookie
           (face-remap-add-relative 'header-line 'default))
-    (setq header-line-format
-          (propertize " " 'display `(height ,top-margin)))
+    (setq header-line-format (propertize " " 'display `(height ,top-margin)))
     ;; Save and hide the mode line
     (setq center-content--original-mode-line-format mode-line-format)
     (setq mode-line-format nil)