diff --git a/ci/default-config b/ci/default-config
index 7cc22758d54..26e82ddcceb 100644
--- a/ci/default-config
+++ b/ci/default-config
@@ -44,7 +44,7 @@ DOCKER_UBUNTU_TAG_ARCH=arm64        # How the architecture is named in Docker
 DOCKER_UBUNTU_QEMU_VER=v2.9.1
 DOCKER_UBUNTU_REPO=multiarch/ubuntu-core
 
-THREADS=$(grep -c ^processor /proc/cpuinfo || nproc || sysctl -a | grep -F 'hw.ncpu')
+THREADS=$(grep -c ^processor /proc/cpuinfo || nproc || sysctl -a | grep -F 'hw.ncpu' | grep -oE '[0-9]+')
 
 # All scripts should return 0 in case of success, 1 in case of permanent error,
 #  2 in case of temporary error, any other code in case of permanent error.
diff --git a/ci/install-os-packages.sh b/ci/install-os-packages.sh
index b06d7d2d7c4..23a6b1a49ff 100755
--- a/ci/install-os-packages.sh
+++ b/ci/install-os-packages.sh
@@ -104,7 +104,7 @@ case $PACKAGE_MANAGER in
                 $SUDO pkg install -y readline
                 ;;
             libunixodbc-dev)
-                $SUDO pkg install -y unixODBC
+                $SUDO pkg install -y unixODBC libltdl
                 ;;
             libmysqlclient-dev)
                 $SUDO pkg install -y mysql57-client