diff --git a/argocd/thanos/monitoring/templates/thanos-query-deployment.yaml b/argocd/thanos/monitoring/templates/thanos-query-deployment.yaml
index 54f50ce..b294fc4 100644
--- a/argocd/thanos/monitoring/templates/thanos-query-deployment.yaml
+++ b/argocd/thanos/monitoring/templates/thanos-query-deployment.yaml
@@ -51,7 +51,6 @@ spec:
         {{- range .Values.clusters }}
         - "--endpoint={{ .thanosEndpoint }}:{{ .thanosPort }}"
         {{- end }}
-        - --sync-block-duration=2h
         - --query.auto-downsampling
         env:
         - name: HOST_IP_ADDRESS