diff --git a/packages/extension-sdk/src/connect/visualization/types.ts b/packages/extension-sdk/src/connect/visualization/types.ts
index cf14ac9e7..f09f69282 100644
--- a/packages/extension-sdk/src/connect/visualization/types.ts
+++ b/packages/extension-sdk/src/connect/visualization/types.ts
@@ -98,6 +98,7 @@ export interface VisualizationConfig {
   queryFieldDimensions: Dimension[]
   queryFieldTableCalculations: TableCalculation[]
   queryFieldPivots: PivotConfig[]
+  visConfig: RawVisConfig
 }
 
 export interface QueryResponse {
diff --git a/packages/extension-sdk/src/connect/visualization/visualization_sdk.ts b/packages/extension-sdk/src/connect/visualization/visualization_sdk.ts
index 4c5d8f155..64a761667 100644
--- a/packages/extension-sdk/src/connect/visualization/visualization_sdk.ts
+++ b/packages/extension-sdk/src/connect/visualization/visualization_sdk.ts
@@ -92,8 +92,8 @@ class VisualizationConfigImpl implements VisualizationConfig {
     this._visConfig = visConfig
   }
 
-  get visConfig(): RawVisConfig | undefined {
-    return this._visConfig
+  get visConfig(): RawVisConfig {
+    return this._visConfig || {}
   }
 
   get queryFieldMeasures(): Measure[] {