diff --git a/run-document-server.sh b/run-document-server.sh
index 03e1a4a..b040372 100755
--- a/run-document-server.sh
+++ b/run-document-server.sh
@@ -16,13 +16,13 @@ ONLYOFFICE_DATA_CONTAINER_HOST=${ONLYOFFICE_DATA_CONTAINER_HOST:-localhost}
 ONLYOFFICE_DATA_CONTAINER_PORT=80
 
 SSL_CERTIFICATES_DIR="${DATA_DIR}/certs"
-if [[ -e ${SSL_CERTIFICATES_DIR}/onlyoffice.crt ]]; then
-  SSL_CERTIFICATE_PATH=${SSL_CERTIFICATE_PATH:-${SSL_CERTIFICATES_DIR}/onlyoffice.crt}
+if [[ -z $SSL_CERTIFICATE_PATH ]] && [[ -f ${SSL_CERTIFICATES_DIR}/onlyoffice.crt ]]; then
+  SSL_CERTIFICATE_PATH=${SSL_CERTIFICATES_DIR}/onlyoffice.crt
 else
   SSL_CERTIFICATE_PATH=${SSL_CERTIFICATE_PATH:-${SSL_CERTIFICATES_DIR}/tls.crt}
 fi
-if [[ -e ${SSL_CERTIFICATES_DIR}/onlyoffice.key ]]; then
-  SSL_KEY_PATH=${SSL_KEY_PATH:-${SSL_CERTIFICATES_DIR}/onlyoffice.key}
+if [[ -z $SSL_KEY_PATH ]] && [[ -f ${SSL_CERTIFICATES_DIR}/onlyoffice.key ]]; then
+  SSL_KEY_PATH=${SSL_CERTIFICATES_DIR}/onlyoffice.key
 else
   SSL_KEY_PATH=${SSL_KEY_PATH:-${SSL_CERTIFICATES_DIR}/tls.key}
 fi