diff --git a/scripts/ci/bootstrap-apt.sh b/scripts/ci/bootstrap-apt.sh
index 02bd50e..178af52 100755
--- a/scripts/ci/bootstrap-apt.sh
+++ b/scripts/ci/bootstrap-apt.sh
@@ -4,7 +4,7 @@ set -euo pipefail
 
 export DEBIAN_FRONTEND=noninteractive
 
-printf 'Acquire::http::Proxy "http://cbrapt01.lan.cyber.gent:3142";";\n' >/etc/apt/apt.conf.d/80proxy
+printf 'Acquire::http::Proxy "http://cbrapt01.lan.cyber.gent:3142";\n' >/etc/apt/apt.conf.d/80proxy
 apt-get update
 apt-get upgrade -y
 apt-get install -y --no-install-recommends build-essential