diff --git a/charts/reth/templates/configmap.yaml b/charts/reth/templates/configmap.yaml
new file mode 100644
index 00000000..dc4651d6
--- /dev/null
+++ b/charts/reth/templates/configmap.yaml
@@ -0,0 +1,11 @@
+{{- if .Values.config }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "reth.fullname" . }}-configmap
+  labels:
+    {{- include "reth.labels" . | nindent 4 }}
+data:
+  config.toml: |
+    {{- tpl .Values.config . | nindent 4 }}
+{{- end }}
diff --git a/charts/reth/templates/statefulset.yaml b/charts/reth/templates/statefulset.yaml
index 768050b7..e560b008 100644
--- a/charts/reth/templates/statefulset.yaml
+++ b/charts/reth/templates/statefulset.yaml
@@ -111,6 +111,12 @@ spec:
               mountPath: "/data/jwt.hex"
               subPath: jwt.hex
               readOnly: true
+            {{- if .Values.config }}
+            - name: config
+              mountPath: "/data/config.toml"
+              subPath: config.toml
+              readOnly: true
+            {{- end }}
           ports:
             {{- if .Values.extraContainerPorts }}
               {{ toYaml .Values.extraContainerPorts | nindent 12}}
@@ -174,6 +180,11 @@ spec:
         - name: env-nodeport
           emptyDir: {}
       {{- end }}
+      {{- if .Values.config }}
+        - name: config
+          configMap:
+            name: {{ include "reth.fullname" . }}-configmap
+      {{- end }}
       {{- if .Values.extraVolumes }}
         {{ toYaml .Values.extraVolumes | nindent 8}}
       {{- end }}
diff --git a/charts/reth/values.yaml b/charts/reth/values.yaml
index 8738e7f8..687aee15 100644
--- a/charts/reth/values.yaml
+++ b/charts/reth/values.yaml
@@ -343,3 +343,7 @@ serviceMonitor:
   scrapeTimeout: 30s
   # -- ServiceMonitor relabelings
   relabelings: []
+
+# specify a custom config.toml
+# see: https://reth.rs/run/config.html
+#config: |