diff --git a/envoyfilter/src/stream_context.rs b/envoyfilter/src/stream_context.rs
index 35fc81c8..9d71099a 100644
--- a/envoyfilter/src/stream_context.rs
+++ b/envoyfilter/src/stream_context.rs
@@ -300,6 +300,7 @@ impl StreamContext {
                                 parameter_type: entity.parameter_type.clone(),
                                 description: entity.description.clone(),
                                 required: entity.required,
+                                enum_values: entity.enum_values.clone(),
                             };
                             properties.insert(entity.name.clone(), param);
                         }
@@ -326,7 +327,7 @@ impl StreamContext {
 
                 let msg_body = match serde_json::to_string(&chat_completions) {
                     Ok(msg_body) => {
-                        debug!("msg_body: {}", msg_body);
+                        debug!("bolt-fc request body content: {}", msg_body);
                         msg_body
                     }
                     Err(e) => {
diff --git a/public_types/src/common_types.rs b/public_types/src/common_types.rs
index 16d4bd8a..85c2e2f8 100644
--- a/public_types/src/common_types.rs
+++ b/public_types/src/common_types.rs
@@ -42,6 +42,9 @@ pub struct ToolParameter {
     pub description: String,
     #[serde(skip_serializing_if = "Option::is_none")]
     pub required: Option<bool>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    #[serde(rename = "enum")]
+    pub enum_values: Option<Vec<String>>,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
diff --git a/public_types/src/configuration.rs b/public_types/src/configuration.rs
index 663455e3..3d127782 100644
--- a/public_types/src/configuration.rs
+++ b/public_types/src/configuration.rs
@@ -98,6 +98,8 @@ pub struct Parameter {
     pub parameter_type: Option<String>,
     pub description: String,
     pub required: Option<bool>,
+    #[serde(rename = "enum")]
+    pub enum_values: Option<Vec<String>>,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]