diff --git a/conf/openmetadata.yaml b/conf/openmetadata.yaml
index 72cd6e300d5..0916de60fb6 100644
--- a/conf/openmetadata.yaml
+++ b/conf/openmetadata.yaml
@@ -190,7 +190,7 @@ authenticationConfiguration:
     clientAuthenticationMethod: ${OIDC_CLIENT_AUTH_METHOD:-"client_secret_post"}
     tenant: ${OIDC_TENANT:-""}
     maxClockSkew: ${OIDC_MAX_CLOCK_SKEW:-""}
-    customParams: ${OIDC_CUSTOM_PARAMS:-{}}
+    customParams: ${OIDC_CUSTOM_PARAMS:-}
   samlConfiguration:
     debugMode: ${SAML_DEBUG_MODE:-false}
     idp: