diff --git a/macros/pass3_install-config.json b/macros/pass3_install-config.json
index 792e05f..1c3cbb3 100644
--- a/macros/pass3_install-config.json
+++ b/macros/pass3_install-config.json
@@ -1,7 +1,7 @@
 {
-  "DOMAIN_NAME":["exec","sed --quiet \"/domain_name=/s/.*=//p\" config/instance.conf"],
-  "CONTENT_DIR":["exec","sed --quiet \"/threadr_dir=/s/.*=//p\" config/instance.conf"],
-  "DB_PASSWORD":["exec","sed --quiet \"/db_password=/s/.*=//p\" config/instance.conf"],
-  "DB_USERNAME":["exec","sed --quiet \"/db_username=/s/.*=//p\" config/instance.conf"],
+  "DOMAIN_NAME":["exec","echo -n \"$(sed --quiet \"/domain_name=/s/.*=//p\" config/instance.conf)\""],
+  "CONTENT_DIR":["exec","echo -n \"$(sed --quiet \"/threadr_dir=/s/.*=//p\" config/instance.conf)\""],
+  "DB_PASSWORD":["exec","echo -n \"$(sed --quiet \"/db_password=/s/.*=//p\" config/instance.conf)\""],
+  "DB_USERNAME":["exec","echo -n \"$(sed --quiet \"/db_username=/s/.*=//p\" config/instance.conf)\""],
   "ABOUT_PAGE":["file","config/about.template"]
 }