diff --git a/tests/CI/buildAsterisk.sh b/tests/CI/buildAsterisk.sh
index d9c86784340336af859b288c7cefea7119cf1ab3..65afe786b943f1b4e46db4f9bb83be77f77220ab 100755
--- a/tests/CI/buildAsterisk.sh
+++ b/tests/CI/buildAsterisk.sh
@@ -73,9 +73,11 @@ runner ccache -s
 runner ulimit -a
 
 MAKE=`which make`
+PKGCONFIG=`which pkg-config`
 [ -d /usr/lib64 ] && _libdir=/usr/lib64
 
 common_config_args="--prefix=/usr ${_libdir:+--libdir=${_libdir}} --sysconfdir=/etc --with-pjproject-bundled"
+$PKGCONFIG 'jansson' || common_config_args+=" --with-jansson-bundled"
 common_config_args+=" ${CACHE_DIR:+--with-sounds-cache=${CACHE_DIR}/sounds --with-externals-cache=${CACHE_DIR}/externals}"
 common_config_args+=" --enable-dev-mode"
 if [ $COVERAGE -eq 1 ] ; then