1 files changed, 4 insertions, 4 deletions

diff --git a/meta/recipes-connectivity/openssl/files/environment.d-openssl.sh b/meta/recipes-connectivity/openssl/files/environment.d-openssl.sh
index 71d378734c..0e75e34f9d 100644
--- a/meta/recipes-connectivity/openssl/files/environment.d-openssl.sh
+++ b/meta/recipes-connectivity/openssl/files/environment.d-openssl.sh
@@ -5,16 +5,16 @@ export BB_ENV_PASSTHROUGH_ADDITIONS="${BB_ENV_PASSTHROUGH_ADDITIONS:-} OPENSSL_C
 
 # Respect host env SSL_CERT_FILE/SSL_CERT_DIR first, then auto-detected host cert, then cert in buildtools
 # CAFILE/CAPATH is auto-deteced when source buildtools
-if [ -z "$SSL_CERT_FILE" ]; then
-        if [ -n "$CAFILE" ];then
+if [ -z "${SSL_CERT_FILE:-}" ]; then
+        if [ -n "${CAFILE:-}" ];then
                 export SSL_CERT_FILE="$CAFILE"
         elif [ -e "${OECORE_NATIVE_SYSROOT}/etc/ssl/certs/ca-certificates.crt" ];then
                 export SSL_CERT_FILE="$OECORE_NATIVE_SYSROOT/usr/lib/ssl-3/certs/ca-certificates.crt"
         fi
 fi
 
-if [ -z "$SSL_CERT_DIR" ]; then
-        if [ -n "$CAPATH" ];then
+if [ -z "${SSL_CERT_DIR:-}" ]; then
+        if [ -n "${CAPATH:-}" ];then
                 export SSL_CERT_DIR="$CAPATH"
         elif [ -e "${OECORE_NATIVE_SYSROOT}/etc/ssl/certs/ca-certificates.crt" ];then
                 export SSL_CERT_DIR="$OECORE_NATIVE_SYSROOT/usr/lib/ssl-3/certs"