diff --git a/android/source/src/java/org/libreoffice/overlay/DocumentOverlay.java b/android/source/src/java/org/libreoffice/overlay/DocumentOverlay.java
index 15396388876b..228e8d2e1d77 100644
--- a/android/source/src/java/org/libreoffice/overlay/DocumentOverlay.java
+++ b/android/source/src/java/org/libreoffice/overlay/DocumentOverlay.java
@@ -32,7 +32,7 @@ public class DocumentOverlay {
     private final DocumentOverlayView mDocumentOverlayView;
     private final DocumentOverlayLayer mDocumentOverlayLayer;
 
-    private final long hidePageNumberRectDelayInMilliseconds = 500;
+    private static final long HIDE_PAGE_NUMBER_RECT_DELAY_IN_MILLISECONDS = 500;
 
     /**
      * DocumentOverlayLayer responsibility is to get the changes to the viewport
@@ -118,7 +118,7 @@ public class DocumentOverlay {
             public void run() {
                 mDocumentOverlayView.hidePageNumberRect();
             }
-        }, hidePageNumberRectDelayInMilliseconds);
+        }, HIDE_PAGE_NUMBER_RECT_DELAY_IN_MILLISECONDS);
     }
 
     /**