diff --git a/live-build/auto/build b/live-build/auto/build
index b71c8942..f408f324 100755
--- a/live-build/auto/build
+++ b/live-build/auto/build
@@ -97,7 +97,7 @@ if [ "${IMAGEFORMAT:-}" = "ubuntu-image" ]; then
 	#  We could already do that, but then we'd still have to do the
 	#  compressing for the core images.
 	if [ "$PROJECT" = "ubuntu-core" ]; then
-		ubuntu-image snap $UBUNTU_IMAGE_ARGS \
+		/snap/bin/ubuntu-image snap $UBUNTU_IMAGE_ARGS \
 			-O output "$PREFIX".model-assertion
 		# XXX: currently we only have one image generated, but really
 		#  we should be supporting more than one for models that
@@ -106,7 +106,7 @@ if [ "${IMAGEFORMAT:-}" = "ubuntu-image" ]; then
 		xz -0 -T4 "$PREFIX".img
 		mv output/seed.manifest "$PREFIX".manifest
 	else
-		ubuntu-image classic --verbose $UBUNTU_IMAGE_ARGS \
+		/snap/bin/ubuntu-image classic --verbose $UBUNTU_IMAGE_ARGS \
 			-O output "$PREFIX".yaml
 		# Since the output of the ubuntu-image call can vary based on what
 		# kind of an image we build, the safest bet is to 'export' all the