diff --git a/luci.mk b/luci.mk
index 6e299aaae6..54f3835b41 100644
--- a/luci.mk
+++ b/luci.mk
@@ -231,6 +231,7 @@ define Package/$(PKG_NAME)/postinst
 }
 endef
 else
+ifndef Package/$(PKG_NAME)/postinst
 define Package/$(PKG_NAME)/postinst
 [ -n "$${IPKG_INSTROOT}" ] || {
 	rm -f /tmp/luci-indexcache
@@ -239,6 +240,7 @@ define Package/$(PKG_NAME)/postinst
 }
 endef
 endif
+endif
 
 
 LUCI_BUILD_PACKAGES := $(PKG_NAME)