diff --git a/helm/oncall/templates/secrets.yaml b/helm/oncall/templates/secrets.yaml
index 40a02694..a4c32845 100644
--- a/helm/oncall/templates/secrets.yaml
+++ b/helm/oncall/templates/secrets.yaml
@@ -12,8 +12,8 @@ metadata:
   {{- end }}
 type: Opaque
 data:
-  {{ include "snippet.oncall.secret.secretKey" . }}: {{ randAlphaNum 40 | b64enc | quote }}
-  {{ include "snippet.oncall.secret.mirageSecretKey" . }}: {{ randAlphaNum 40 | b64enc | quote }}
+  {{ include "snippet.oncall.secret.secretKey" . }}: {{ (.Values.oncall.secrets.secretKey | default (randAlphaNum 40)) | b64enc | quote }}
+  {{ include "snippet.oncall.secret.mirageSecretKey" . }}: {{ (.Values.oncall.secrets.mirageSecretKey | default (randAlphaNum 40)) | b64enc | quote }}
 ---
 {{- end }}
 {{- if and (eq .Values.database.type "mysql") (not .Values.mariadb.enabled) (not .Values.externalMysql.existingSecret) }}