diff --git a/packages/backend-core/src/events/publishers/license.ts b/packages/backend-core/src/events/publishers/license.ts
index d1ff4d7609..094cf7fac1 100644
--- a/packages/backend-core/src/events/publishers/license.ts
+++ b/packages/backend-core/src/events/publishers/license.ts
@@ -15,17 +15,18 @@ import {
 
 async function planChanged(
   account: Account,
-  from: PlanType,
-  to: PlanType,
-  quantity: number | undefined,
-  duration: PriceDuration | undefined
+  opts: {
+    from: PlanType
+    to: PlanType
+    fromQuantity: number | undefined
+    toQuantity: number | undefined
+    fromDuration: PriceDuration | undefined
+    toDuration: PriceDuration | undefined
+  }
 ) {
   const properties: LicensePlanChangedEvent = {
     accountId: account.accountId,
-    to,
-    from,
-    quantity,
-    duration,
+    ...opts,
   }
   await publishEvent(Event.LICENSE_PLAN_CHANGED, properties)
 }
diff --git a/packages/backend-core/tests/core/utilities/structures/licenses.ts b/packages/backend-core/tests/core/utilities/structures/licenses.ts
index 810f31cf4f..22e73f2871 100644
--- a/packages/backend-core/tests/core/utilities/structures/licenses.ts
+++ b/packages/backend-core/tests/core/utilities/structures/licenses.ts
@@ -29,7 +29,7 @@ export const plan = (type: PlanType = PlanType.FREE): PurchasedPlan => {
     type,
     usesInvoicing: false,
     model: PlanModel.PER_USER,
-    price: price(),
+    price: type !== PlanType.FREE ? price() : undefined,
   }
 }
 
diff --git a/packages/types/src/sdk/events/license.ts b/packages/types/src/sdk/events/license.ts
index b92c556cc8..12bdd92184 100644
--- a/packages/types/src/sdk/events/license.ts
+++ b/packages/types/src/sdk/events/license.ts
@@ -5,11 +5,10 @@ export interface LicensePlanChangedEvent {
   from: PlanType
   to: PlanType
   // may not be on historical events
-  // free plans won't have a duration
-  duration: PriceDuration | undefined
-  // may not be on historical events
-  // free plans won't have a quantity
-  quantity: number | undefined
+  fromDuration: PriceDuration | undefined
+  toDuration: PriceDuration | undefined
+  fromQuantity: number | undefined
+  toQuantity: number | undefined
 }
 
 export interface LicenseActivatedEvent {