diff --git a/test/e2e/e2ethanos/services.go b/test/e2e/e2ethanos/services.go
index 57b0841fcb1..01800da7bf1 100644
--- a/test/e2e/e2ethanos/services.go
+++ b/test/e2e/e2ethanos/services.go
@@ -296,7 +296,7 @@ func (q *QuerierBuilder) Build() (e2e.InstrumentedRunnable, error) {
 		fmt.Sprintf("querier-%v", q.name),
 		q.image,
 		e2e.NewCommand("query", args...),
-		e2e.NewHTTPReadinessProbe("http", "/-/ready", 200, 200),
+		e2e.NewHTTPReadinessProbe("http", path.Join("/", q.externalPrefix, "/-/ready"), 200, 200),
 		8080,
 		9091,
 	)