diff --git a/src/sql/sqlops.proposed.d.ts b/src/sql/sqlops.proposed.d.ts
index 79e3a155ae..dee720b59f 100644
--- a/src/sql/sqlops.proposed.d.ts
+++ b/src/sql/sqlops.proposed.d.ts
@@ -194,7 +194,7 @@ declare module 'sqlops' {
 		/**
 		 * Data sent on callback being run.
 		 */
-		callbackData?: string;
+		callbackData?: any;
 	}
 
 	/**
diff --git a/src/sql/workbench/api/common/sqlExtHostTypes.ts b/src/sql/workbench/api/common/sqlExtHostTypes.ts
index 8cd3df018d..3df02433b6 100644
--- a/src/sql/workbench/api/common/sqlExtHostTypes.ts
+++ b/src/sql/workbench/api/common/sqlExtHostTypes.ts
@@ -139,6 +139,6 @@ export interface CardProperties {
 export interface ActionDescriptor {
 	label: string;
 	actionTitle?: string;
-	callbackData?: string;
+	callbackData?: any;
 }