diff --git a/make/defs-dev.mk b/make/defs-dev.mk
index 0b6d5557..b679e0fd 100644
--- a/make/defs-dev.mk
+++ b/make/defs-dev.mk
@@ -14,6 +14,8 @@ EXE_PREFIX       ?= $(PREFIX)
 INIT_PREFIX      ?= $(EXE_PREFIX)
 HTDOCS_PREFIX    ?= $(PREFIX)/srv/www
 SYSTEMD_DIR      ?= $(PREFIX)/usr/lib/systemd/system
+JS_PREFIX        ?= $(PREFIX)/usr/share/javascript
+JS_DIR           ?= $(JS_PREFIX)/$(PROJECT_DIRNAME)
 SYSCFG_DIR       ?= $(PREFIX)/sysconfig
 CONFIG_DIR       ?= $(ENV_PREFIX)$(HOME)/etc/$(FLAVOUR_PATH_PREFIX)$(PROJECT_DIRNAME)
 LD_CONF_DIR      ?= $(ENV_PREFIX)$(HOME)/etc/ld.so.conf.d
diff --git a/make/defs-dist.mk b/make/defs-dist.mk
index d5de97ff..d2df46e1 100644
--- a/make/defs-dist.mk
+++ b/make/defs-dist.mk
@@ -14,6 +14,8 @@ EXE_PREFIX       ?= $(PREFIX)
 INIT_PREFIX      ?= $(ENV_PREFIX)/etc$(FLAVOUR_PATH_SUFFIX)
 HTDOCS_PREFIX    ?= $(ENV_PREFIX)/srv/www
 SYSTEMD_DIR      ?= $(ENV_PREFIX)/usr/lib/systemd/system
+JS_PREFIX        ?= $(ENV_PREFIX)/usr/share/javascript
+JS_DIR           ?= $(JS_PREFIX)/$(PROJECT_DIRNAME)
 SYSCFG_DIR       ?= $(ENV_PREFIX)/etc/$(FLAVOUR_PATH_PREFIX)sysconfig
 CONFIG_DIR       ?= $(ENV_PREFIX)/etc/opt/$(FLAVOUR_PATH_PREFIX)$(PROJECT_DIRNAME)
 LD_CONF_DIR      ?= $(ENV_PREFIX)/etc/ld.so.conf.d