diff --git a/df/test-virt-df-guests.sh b/df/test-virt-df-guests.sh
index b9e230975..126b88006 100755
--- a/df/test-virt-df-guests.sh
+++ b/df/test-virt-df-guests.sh
@@ -21,6 +21,11 @@
 export LANG=C
 set -e
 
+if [ -n "$SKIP_TEST_VIRT_DF_GUESTS_SH" ]; then
+    echo "$0: skipping test because SKIP_TEST_DF_GUESTS_SH is set."
+    exit 77
+fi
+
 guestsdir="$(cd ../tests/guests && pwd)"
 libvirt_uri="test://$guestsdir/guests.xml"