diff --git a/debian/changelog b/debian/changelog
index e5ef0fb7..0c7aed7d 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -18,8 +18,11 @@ libfprint (1:1.90.1-1) UNRELEASED; urgency=medium
   * Update debian/libfprint2.postinst for the new supported readers
   * debian/gbp.conf: Upstream tags have changed format
   * debian/control: Bump Standards-Version to 4.5.0 (no further changes)
+  * d/p/udev-rules-creation-add-Debian-specifics.patch: Avoid unprivileged
+    users to be able to read the devices, this is not necessary and could lead
+    to fingerprint images being captured.
 
- -- Laurent Bigonville <bigon@debian.org>  Thu, 13 Feb 2020 10:59:42 +0100
+ -- Laurent Bigonville <bigon@debian.org>  Thu, 13 Feb 2020 11:19:04 +0100
 
 libfprint (1:1.0-1) unstable; urgency=medium
 
diff --git a/debian/patches/udev-rules-creation-add-Debian-specifics.patch b/debian/patches/udev-rules-creation-add-Debian-specifics.patch
index 0bcbb375..59c273f3 100644
--- a/debian/patches/udev-rules-creation-add-Debian-specifics.patch
+++ b/debian/patches/udev-rules-creation-add-Debian-specifics.patch
@@ -27,7 +27,7 @@ Last-Update: 2020-01-10
 +      g_print ("SUBSYSTEM==\"usb\", ATTRS{idVendor}==\"%04x\", ATTRS{idProduct}==\"%04x\", ATTRS{dev}==\"*\", ", entry->vid, entry->pid);
 +      if (bl_entry->vid == 0)
 +          g_print ("TEST==\"power/control\", ATTR{power/control}=\"auto\", ");
-+      g_print ("MODE=\"0664\", GROUP=\"plugdev\"\n");
++      g_print ("MODE=\"0660\", GROUP=\"plugdev\"\n");
        g_print ("SUBSYSTEM==\"usb\", ATTRS{idVendor}==\"%04x\", ATTRS{idProduct}==\"%04x\", ENV{LIBFPRINT_DRIVER}=\"%s\"\n",
                 entry->vid, entry->pid, cls->full_name);
        num_printed++;