diff --git a/sys-devel/m4/m4-1.4.16.bep b/sys-devel/m4/m4-1.4.16.bep
index e48b1025f..77c3b74ae 100644
--- a/sys-devel/m4/m4-1.4.16.bep
+++ b/sys-devel/m4/m4-1.4.16.bep
@@ -6,10 +6,10 @@ CHECKSUM_MD5="a5dfb4f2b7370e9d34293d23fd09b280"
 REVISION="1"
 STATUS_HAIKU="stable"
 DEPEND=""
-SOURCE_DIR="m4-1.4.16"
+SOURCE_DIR="$portVersionedName"
 
 BUILD {
-	prefix=$(finddir B_PACKAGE_LINKS_DIRECTORY)/m4-1.4.16
+	prefix=$(finddir B_PACKAGE_LINKS_DIRECTORY)/$portRevisionedName
 	./configure --prefix=$prefix \
 		--datarootdir=$prefix/data \
 		--sbindir=$prefix/bin \