diff --git a/src/org/fdroid/fdroid/AppDetails.java b/src/org/fdroid/fdroid/AppDetails.java
index e99b1311e..da34b70a5 100644
--- a/src/org/fdroid/fdroid/AppDetails.java
+++ b/src/org/fdroid/fdroid/AppDetails.java
@@ -153,15 +153,17 @@ public class AppDetails extends ListActivity {
         }
     }
 
+    private static final String[] FRIENDLY_SIZE_FORMAT = {
+            "%.0f B", "%.0f KiB", "%.1f MiB", "%.2f GiB" };
+
     private static String getFriendlySize(int size) {
         double s = size;
-        String[] format = { "%f B", "%.0f KiB", "%.1f MiB", "%.2f GiB" };
         int i = 0;
-        while (i < format.length - 1 && s >= 1024) {
+        while (i < FRIENDLY_SIZE_FORMAT.length - 1 && s >= 1024) {
             s = (100 * s / 1024) / 100.0;
             i++;
         }
-        return String.format(format[i], s);
+        return String.format(FRIENDLY_SIZE_FORMAT[i], s);
     }
 
     private static final int INSTALL = Menu.FIRST;