diff --git a/packages/buster-cli/src/assets/templates/buster_model.yml b/packages/buster-cli/src/assets/templates/buster_model.yml
index 10eafc612..dc2f47a1c 100644
--- a/packages/buster-cli/src/assets/templates/buster_model.yml
+++ b/packages/buster-cli/src/assets/templates/buster_model.yml
@@ -1,6 +1,6 @@
 version: 2
 
-semantic_models:
+models:
   - name: the_name_of_the_semantic_model ## Required
     description: same as always ## Optional
     model: ref('some_model') ## Required: the database identifier of the table/view/mv that this semantic model relates to.
diff --git a/packages/buster-cli/src/utils/buster/types.rs b/packages/buster-cli/src/utils/buster/types.rs
index 6a2b49d3f..f370c09d7 100644
--- a/packages/buster-cli/src/utils/buster/types.rs
+++ b/packages/buster-cli/src/utils/buster/types.rs
@@ -47,7 +47,7 @@ pub struct PostDatasetsColumnsRequest {
 #[derive(Debug, Serialize)]
 pub struct PostDatasetsEntityRelationshipsRequest {
     pub name: String,
-    pub expr: Vec<String>,
+    pub expr: String,
     #[serde(rename = "type")]
     pub type_: String,
 }
diff --git a/packages/buster-cli/src/utils/file/model_files.rs b/packages/buster-cli/src/utils/file/model_files.rs
index 4db1668cc..0499d60d7 100644
--- a/packages/buster-cli/src/utils/file/model_files.rs
+++ b/packages/buster-cli/src/utils/file/model_files.rs
@@ -22,13 +22,12 @@ pub struct BusterModelObject {
 #[derive(Debug, Serialize, Deserialize)]
 pub struct BusterModel {
     pub version: i32,
-    pub semantic_models: Vec<SemanticModel>,
+    pub models: Vec<Model>,
 }
 
 #[derive(Debug, Serialize, Deserialize)]
-pub struct SemanticModel {
+pub struct Model {
     pub name: String,
-    pub defaults: ModelDefaults,
     pub description: String,
     pub model: Option<String>,
     pub entities: Vec<Entity>,
@@ -36,11 +35,6 @@ pub struct SemanticModel {
     pub measures: Vec<Measure>,
 }
 
-#[derive(Debug, Serialize, Deserialize)]
-pub struct ModelDefaults {
-    pub agg_time_dimension: String,
-}
-
 #[derive(Debug, Serialize, Deserialize)]
 pub struct Entity {
     pub name: String,
@@ -121,7 +115,7 @@ pub async fn upload_model_files(
 
     // Iterate through each model object and the semantic models within. These are the datasets we want to create.
     for model in model_objects {
-        for semantic_model in model.model_file.semantic_models {
+        for semantic_model in model.model_file.models {
             let mut columns = Vec::new();
 
             for column in semantic_model.dimensions {
@@ -151,7 +145,7 @@ pub async fn upload_model_files(
             for entity in semantic_model.entities {
                 entity_relationships.push(PostDatasetsEntityRelationshipsRequest {
                     name: entity.name,
-                    expr: vec![entity.expr],
+                    expr: entity.expr,
                     type_: entity.entity_type,
                 });
             }
diff --git a/packages/buster-cli/tests/command_tests.rs b/packages/buster-cli/tests/command_tests.rs
index 86d11b7f3..957d9fbe7 100644
--- a/packages/buster-cli/tests/command_tests.rs
+++ b/packages/buster-cli/tests/command_tests.rs
@@ -2,7 +2,7 @@
 fn test_convert_buster_to_dbt_model() {
     let buster_yaml = r#"
 version: 2
-semantic_models:
+models:
   - name: test_model
     aliases: ["alias1"]
     entities:
@@ -23,7 +23,7 @@ semantic_models:
 "#;
 
     let dbt_yaml = convert_buster_to_dbt_model(buster_yaml).unwrap();
-    
+
     // The converted YAML shouldn't contain Buster-specific fields
     assert!(!dbt_yaml.contains("aliases"));
     assert!(!dbt_yaml.contains("join_type"));