diff --git a/app-arch/tar/tar-1.25.bep b/app-arch/tar/tar-1.25.bep
index 97db114c3..fd019302b 100644
--- a/app-arch/tar/tar-1.25.bep
+++ b/app-arch/tar/tar-1.25.bep
@@ -15,6 +15,7 @@ BUILD {
 	cp -a `haikuporter -t`/dev-libs/gnulib/work/gnulib-9999/lib/fseek* gnu/
 	cp -a `haikuporter -t`/dev-libs/gnulib/work/gnulib-9999/lib/iswblank* gnu/
 	cp -a `haikuporter -t`/dev-libs/gnulib/work/gnulib-9999/lib/fcntl* gnu/
+	sed -i 's/@GNULIB_NONBLOCKING@/0/' gnu/fcntl*
 	COMMON_DOCS=`finddir B_COMMON_DOCUMENTATION_DIRECTORY`
 	./configure --prefix=`finddir B_COMMON_BIN_DIRECTORY` \
 		--infodir=$COMMON_DOCS/info \