diff --git a/sbin/docker_mk_env b/sbin/docker_mk_env
index e581d2b..d101af1 100755
--- a/sbin/docker_mk_env
+++ b/sbin/docker_mk_env
@@ -15,6 +15,24 @@ version="$1"
 
 
 
+#-------------------------------------------------------------------------------
+function prefix_add
+{
+       prefix=$1
+    separator=$2
+          var=$3
+
+    
+    if [[ "${prefix}" != "" ]]
+    then
+        echo -n "${prefix}${separator}"
+    fi
+    
+    echo "${var}"
+}
+
+
+
 #-------------------------------------------------------------------------------
 function dynvar_export
 {
@@ -64,10 +82,10 @@ function docker_service_add
     if [[ "${service_name}" == "${APPL_NAME}" ]]
     then
         dynvar_export "${varible_prefix}_IMG_URL"        "${target_url_prefix}:${target_version}"
-        dynvar_export "${varible_prefix}_HOST_NAME"      "${HOST_NAME_PREFIX}-webapp"
+        dynvar_export "${varible_prefix}_HOST_NAME"      "$( prefix_add "${HOST_NAME_PREFIX}" "-" "webapp")"
     else
         dynvar_export "${varible_prefix}_IMG_URL"        "${target_url_prefix}/${target_name}:${target_version}"
-        dynvar_export "${varible_prefix}_HOST_NAME"      "${HOST_NAME_PREFIX}-${service_name}"
+        dynvar_export "${varible_prefix}_HOST_NAME"      "$( prefix_add "${HOST_NAME_PREFIX}" "-" "${service_name}")"
     fi