diff --git a/package/firmware/prism54-firmware/Makefile b/package/firmware/prism54-firmware/Makefile
index b74cb682fc..9a0bbba3cd 100644
--- a/package/firmware/prism54-firmware/Makefile
+++ b/package/firmware/prism54-firmware/Makefile
@@ -8,6 +8,8 @@ include $(TOPDIR)/rules.mk
 PKG_NAME:=prism54-firmware
 PKG_RELEASE:=1
 
+DL_SUBDIR:=$(PKG_NAME)-$(PKG_RELEASE)
+
 # P54 SoftMAC firmware (jbnore.free.fr seems to be rather slow, so we use daemonizer.de)
 PRG_URL:=https://daemonizer.de/prism54/prism54-fw/