diff --git a/charts/argo-workflows/README.md b/charts/argo-workflows/README.md
index deec1649..43e86677 100644
--- a/charts/argo-workflows/README.md
+++ b/charts/argo-workflows/README.md
@@ -175,6 +175,7 @@ Fields to note:
 | controller.logging.level | string | `"info"` | Set the logging level (one of: `debug`, `info`, `warn`, `error`) |
 | controller.metricsConfig.enabled | bool | `false` | Enables prometheus metrics server |
 | controller.metricsConfig.headlessService | bool | `false` | Flag to enable headless service |
+| controller.metricsConfig.honorLabels | bool | `false` | When true, honorLabels preserves the metric’s labels when they collide with the target’s labels. |
 | controller.metricsConfig.ignoreErrors | bool | `false` | Flag that instructs prometheus to ignore metric emission errors. |
 | controller.metricsConfig.metricRelabelings | list | `[]` | ServiceMonitor metric relabel configs to apply to samples before ingestion |
 | controller.metricsConfig.metricsTTL | string | `""` | How often custom metrics are cleared from memory |