diff --git a/amd64/additional-base-lib/build.sh b/amd64/additional-base-lib/build.sh
index dc36e20..445b033 100755
--- a/amd64/additional-base-lib/build.sh
+++ b/amd64/additional-base-lib/build.sh
@@ -174,7 +174,7 @@ DEBIAN_DEB_ARCH=$LIBC6_ARCH
 echo "$DEBIAN_DEB_ARCH"
 
 echo "debian multiarch directory name:"
-DEBIAN_MULTIARCH=`dpkg-architecture -A "$DEBIAN_DEB_ARCH" | grep "^DEB_TARGET_MULTIARCH=.*"`
+DEBIAN_MULTIARCH=${ARCH}
 check $?
 DEBIAN_MULTIARCH=${DEBIAN_MULTIARCH:21}
 echo "$DEBIAN_MULTIARCH"