diff --git a/Makefile-daemon.am b/Makefile-daemon.am
index 0d564e28fe..491366d54f 100644
--- a/Makefile-daemon.am
+++ b/Makefile-daemon.am
@@ -1,7 +1,9 @@
 dbus_built_sources = rpm-ostreed-generated.h rpm-ostreed-generated.c
 
+# TODO: Add --c-generate-autocleanup=all once we depend on GLib 2.50+
+# https://github.com/projectatomic/rpm-ostree/pull/705
 rpm-ostreed-generated.h: rpm-ostreed-generated.c
-rpm-ostreed-generated.c: Makefile.am $(top_srcdir)/src/daemon/org.projectatomic.rpmostree1.xml
+rpm-ostreed-generated.c: Makefile $(top_srcdir)/src/daemon/org.projectatomic.rpmostree1.xml
 	$(AM_V_GEN) gdbus-codegen \
 		--interface-prefix org.projectatomic.rpmostree1 \
 		--c-namespace RPMOSTree \
@@ -12,6 +14,7 @@ rpm-ostreed-generated.c: Makefile.am $(top_srcdir)/src/daemon/org.projectatomic.
 		$(NULL)
 BUILT_SOURCES += $(dbus_built_sources)
 CLEANFILES += rpm-ostreed-generated-org.projectatomic.rpmostree1.OS.xml \
+	rpm-ostreed-generated-org.projectatomic.rpmostree1.OSExperimental.xml \
 	rpm-ostreed-generated-org.projectatomic.rpmostree1.Sysroot.xml \
 	rpm-ostreed-generated-org.projectatomic.rpmostree1.Transaction.xml \
 	$(NULL)
diff --git a/tests/common/libvm.sh b/tests/common/libvm.sh
index 268e50f150..2ad6428050 100644
--- a/tests/common/libvm.sh
+++ b/tests/common/libvm.sh
@@ -45,6 +45,10 @@ vm_rsync() {
     fi
     rsync -az --no-owner --no-group -e "$rsyncopts" \
               --exclude .git/ . $VM:/var/roothome/sync
+    if test -n "${VMCHECK_INSTTREE:-}"; then
+        rsync -az --no-owner --no-group -e "$rsyncopts" \
+              ${VMCHECK_INSTTREE}/ $VM:/var/roothome/sync/insttree/
+    fi
     popd
   fi
 }
diff --git a/tests/vmcheck/overlay.sh b/tests/vmcheck/overlay.sh
index 3af15526f0..1344e95f8c 100755
--- a/tests/vmcheck/overlay.sh
+++ b/tests/vmcheck/overlay.sh
@@ -15,21 +15,18 @@ if test -z "${INSIDE_VM:-}"; then
 
     cd ${topsrcdir}
 
+    # Support local development with e.g. an ostree built from git too,
+    # or libasan.
+    export VMCHECK_INSTTREE=${VMCHECK_INSTTREE:-$(pwd)/insttree}
+
     # Use a lock in case we're called in parallel (make install might fail).
     # Plus, we can just share the same install tree, and sharing is caring!
     flock insttree.lock sh -ec \
-      '[ ! -d insttree ] || exit 0
-       DESTDIR=$(pwd)/insttree
+      '[ ! -d ${VMCHECK_INSTTREE} ] || exit 0
+       DESTDIR=${VMCHECK_INSTTREE}
        make install DESTDIR=${DESTDIR}
-       for san in a t ub; do
-         if eu-readelf -d ${DESTDIR}/usr/bin/rpm-ostree | \
-              grep -q \"NEEDED.*lib${san}san\"; then
-           echo \"Installing extra sanitizier: lib${san}san\"
-           cp /usr/lib64/lib${san}san*.so.* ${DESTDIR}/usr/lib64
-         fi
-       done
        touch ${DESTDIR}/.completed'
-    [ -f insttree/.completed ]
+    [ -f ${VMCHECK_INSTTREE}/.completed ]
 
     vm_rsync
 
diff --git a/tests/vmcheck/sync.sh b/tests/vmcheck/sync.sh
index 7bafd0a41b..beb4f4cd47 100755
--- a/tests/vmcheck/sync.sh
+++ b/tests/vmcheck/sync.sh
@@ -15,8 +15,8 @@ if test -z "${INSIDE_VM:-}"; then
     set -x
 
     cd ${topsrcdir}
-    rm insttree -rf
-    make install DESTDIR=$(pwd)/insttree
+    export VMCHECK_INSTTREE=${VMCHECK_INSTTREE:-$(pwd)/insttree}
+    make install DESTDIR=${VMCHECK_INSTTREE}
     vm_rsync
 
     $SSH "env INSIDE_VM=1 /var/roothome/sync/tests/vmcheck/sync.sh"