diff --git a/installer/install.sh b/installer/install.sh
index 7034eaa..1cb379f 100644
--- a/installer/install.sh
+++ b/installer/install.sh
@@ -47,7 +47,7 @@ git clone $git_base $my_tmp/opt/$my_app_name/core
 pushd $my_tmp/opt/$my_app_name/core
   git checkout $my_app_ver
 
-  mkdir -p "$my_tmp/{etc,opt,srv,var}/$my_app_name"
+  mkdir -p $my_tmp/{etc,opt,srv,var}/$my_app_name
   mkdir -p "$my_tmp/var/log/$my_app_name"
   mkdir -p "$my_tmp/opt/$my_app_name"/{bin,config,core,etc,lib,node_modules,var}
   ln -s ../core/bin/$my_app_name.js $my_tmp/opt/$my_app_name/bin/$my_app_name