diff --git a/templates/prometheus.yaml.erb b/templates/prometheus.yaml.erb
index b59941aa7..483c475ee 100644
--- a/templates/prometheus.yaml.erb
+++ b/templates/prometheus.yaml.erb
@@ -22,7 +22,7 @@ if @prometheus_v2
 end
  -%>
 <%= if @prometheus_v2
-full_config.to_yaml
+full_config.to_yaml().gsub(/source_labels: ".+?"/) { |x| x.gsub('"', '') }
 else
 full_config.to_yaml(options = {:line_width => -1}).gsub(/source_labels: ".+?"/) { |x| x.gsub('"', '') }
 end