diff --git a/lib/www/server/lib/db/qc/results/get.js b/lib/www/server/lib/db/qc/results/get.js
index eaf274c..eab775e 100644
--- a/lib/www/server/lib/db/qc/results/get.js
+++ b/lib/www/server/lib/db/qc/results/get.js
@@ -67,7 +67,7 @@ function makeTree (leaf, sequences, shots) {
 async function get (projectId, sequenceId, opts = {}) {
 	const client = await setSurvey(projectId);
 
-	const tree = await definitions.get(projectId);
+	const tree = await definitions.get(projectId) ?? [];
 	const shots = await getShots(client, sequenceId);
 	const sequences = await getSequences(client, sequenceId);
 
diff --git a/lib/www/server/lib/qc/index.js b/lib/www/server/lib/qc/index.js
index 038b773..50acc31 100644
--- a/lib/www/server/lib/qc/index.js
+++ b/lib/www/server/lib/qc/index.js
@@ -73,7 +73,7 @@ async function main () {
 				console.log("currentQCHash != lastQCHash", projectId, currentQCHash, lastQCHash);
 
 				// Fetch definitions and parameters
-				const { definitions, parameters } = await getProjectQCConfig(projectId);
+				const { definitions, parameters } = await getProjectQCConfig(projectId) ?? {};
 
 				if (definitions && parameters) {
 					console.log("PROJECT ID", projectId);