diff --git a/site/src/pages/WorkspacePage/WorkspaceBuildProgress.tsx b/site/src/pages/WorkspacePage/WorkspaceBuildProgress.tsx
index 88f006681495e..52f3e725c6003 100644
--- a/site/src/pages/WorkspacePage/WorkspaceBuildProgress.tsx
+++ b/site/src/pages/WorkspacePage/WorkspaceBuildProgress.tsx
@@ -81,6 +81,7 @@ export const WorkspaceBuildProgress: FC<WorkspaceBuildProgressProps> = ({
 	useEffect(() => {
 		const updateProgress = () => {
 			if (
+				job === undefined ||
 				job.status !== "running" ||
 				transitionStats.P50 === undefined ||
 				transitionStats.P95 === undefined ||