diff --git a/scripts/os_debian b/scripts/os_debian
index ed2d7a4..d2bbc1e 100755
--- a/scripts/os_debian
+++ b/scripts/os_debian
@@ -53,8 +53,12 @@ fi
 
 grep ':i386' InstallOnly.list &>/dev/null && dpkg --add-architecture i386
 
+cp -a sources.list /etc/apt/sources.list
 rsync --ignore-existing -raz sources.list.d/ /etc/apt/sources.list.d/
 rsync --ignore-existing -raz trusted.gpg.d/ /etc/apt/trusted.gpg.d/
+
+apt update
+
 xargs aptitude --schedule-only install < InstallOnly.list
 aptitude install
 EOF