diff --git a/src/dls.rs b/src/dls.rs
index 16af6d2..d912a20 100644
--- a/src/dls.rs
+++ b/src/dls.rs
@@ -170,6 +170,8 @@ pub struct Config {
     pub host_templates: Vec<HostConfig>,
     #[serde(default, rename = "SSLConfig")]
     pub ssl_config: String,
+    #[serde(default, deserialize_with = "deserialize_null_as_default")]
+    pub extra_ca_certs: Map<String, String>,
 }
 
 // compensate for go's encoder pitfalls