diff --git a/F-Droid/src/org/fdroid/fdroid/installer/InstallIntoSystem.java b/F-Droid/src/org/fdroid/fdroid/installer/InstallIntoSystem.java
index ddaa05190..67b2adf2d 100644
--- a/F-Droid/src/org/fdroid/fdroid/installer/InstallIntoSystem.java
+++ b/F-Droid/src/org/fdroid/fdroid/installer/InstallIntoSystem.java
@@ -102,7 +102,7 @@ abstract class InstallIntoSystem {
     protected List<String> getCopyToSystemCommands() {
         final List<String> commands = new ArrayList<>(2);
         commands.add("cat " + context.getPackageCodePath() + " > " + getInstallPath() + ".tmp");
-        commands.add("chmod 655 " + getInstallPath() + ".tmp");
+        commands.add("chmod 644 " + getInstallPath() + ".tmp");
         return commands;
     }
 
@@ -178,7 +178,7 @@ abstract class InstallIntoSystem {
             List<String> commands = new ArrayList<>(3);
             commands.add("mkdir " + getSystemFolder()); // create app directory if not existing
             commands.add("cat " + context.getPackageCodePath() + " > " + getInstallPath() + ".tmp");
-            commands.add("chmod 655 " + getInstallPath() + ".tmp");
+            commands.add("chmod 644 " + getInstallPath() + ".tmp");
             return commands;
         }