diff --git a/build-image b/build-image
index 33cb35e4d1abc2de075a5018d172658e03a83223..98ee8a32b3cee1ce892e95b2450690afbc722aa9 100755
--- a/build-image
+++ b/build-image
@@ -207,6 +207,13 @@ echo "Using kernel ${kernel_deb}"
 escaped_apt_sources=$(echo "${apt_sources}" | sed 's/$/|/g')
 
 set -x
+# clean out deleted loop maps
+stale=$(/sbin/losetup | grep deleted | awk '{ print $1; }')
+if [ -n "${stale}" ]; then
+    echo "cleaning out ${stale}"
+    sudo kpartx -d "${stale}"
+fi
+
 # shellcheck disable=SC2086
 sudo pureos_board="${pureos_board}" \
      distro="${distro}" \