diff --git a/office/apvlv/apvlv.SlackBuild b/office/apvlv/apvlv.SlackBuild
index 513d7088bb..723a7a96bd 100644
--- a/office/apvlv/apvlv.SlackBuild
+++ b/office/apvlv/apvlv.SlackBuild
@@ -23,13 +23,15 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+# 20220402 bkw: Modified by SlackBuilds.org, BUILD=2:
+# - add update-desktop-database to doinst.sh.
 # 20220217 bkw: Modified by SlackBuilds.org: fix build on Slack 15.0.
 
 cd $(dirname $0) ; CWD=$(pwd)
 
 PRGNAM=apvlv
 VERSION=${VERSION:-20160627_9ab7626}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 PKGTYPE=${PKGTYPE:-tgz}
 
diff --git a/office/apvlv/doinst.sh b/office/apvlv/doinst.sh
index 4a9c9936ef..a8e7b9949d 100644
--- a/office/apvlv/doinst.sh
+++ b/office/apvlv/doinst.sh
@@ -11,3 +11,7 @@ config() {
   # Otherwise, we leave the .new copy for the admin to consider...
 }
 config etc/apvlvrc.new
+
+if [ -x /usr/bin/update-desktop-database ]; then
+  /usr/bin/update-desktop-database -q usr/share/applications >/dev/null 2>&1
+fi