diff --git a/gencert.sh b/gencert.sh
index 5932c4f..0bcac60 100755
--- a/gencert.sh
+++ b/gencert.sh
@@ -151,14 +151,13 @@ gen_server_x509() {
 
 install_openssl() {
   set +e
-  type openssl >/dev/null
+  type openssl >/dev/null 2>&1
   if [ $? -eq 0 ]; then
     return;
   fi
 
-  grep -q Ubuntu /etc/lsb-release
-  if [ $? -eq 0 ]; then
-    echo "[${ME}] Installing openssl in Ubuntu"
+  if [ -f /etc/debian_version ]; then
+    echo "[${ME}] Installing openssl in Debian/Ubuntu"
     export DEBIAN_FRONTEND=noninteractive
     apt-get update
     apt-get -y install openssl