diff --git a/ndisc6/Makefile b/ndisc6/Makefile
index bb83a4311..b5f0d033b 100755
--- a/ndisc6/Makefile
+++ b/ndisc6/Makefile
@@ -12,7 +12,7 @@ PKG_NAME:=ndisc6
 PKG_VERSION:=1.0.7
 PKG_RELEASE:=1
 
-PKG_SOURCE:=$(PKG_NAME)_$(PKG_VERSION).tar.bz2
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=https://www.remlab.net/files/ndisc6/$(PKG_SOURCE)
 PKG_HASH:=edc431d70510d7321a5a39d243de0d0f63846dc9145b3b549c7348cc2bc96609