diff --git a/libraries/aubio/aubio.SlackBuild b/libraries/aubio/aubio.SlackBuild
index 5b0941a2bb..bad3ae3cd2 100644
--- a/libraries/aubio/aubio.SlackBuild
+++ b/libraries/aubio/aubio.SlackBuild
@@ -23,7 +23,7 @@
 # ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 PRGNAM=aubio
-VERSION=0.4.2
+VERSION=${VERSION:-0.4.2}
 BUILD=${BUILD:-1}
 TAG=${TAG:-_SBo}