diff --git a/extensions/dacpac/src/wizard/api/models.ts b/extensions/dacpac/src/wizard/api/models.ts
index 7624070c27..dd6113ceb6 100644
--- a/extensions/dacpac/src/wizard/api/models.ts
+++ b/extensions/dacpac/src/wizard/api/models.ts
@@ -16,5 +16,5 @@ export interface DacFxDataModel {
 	filePath: string;
 	version: string;
 	upgradeExisting: boolean;
-	potentialDataLoss: boolean;
+	potentialDataLoss?: boolean;
 }
diff --git a/extensions/dacpac/src/wizard/dataTierApplicationWizard.ts b/extensions/dacpac/src/wizard/dataTierApplicationWizard.ts
index 94bae415f1..3ed5c4f3c4 100644
--- a/extensions/dacpac/src/wizard/dataTierApplicationWizard.ts
+++ b/extensions/dacpac/src/wizard/dataTierApplicationWizard.ts
@@ -335,7 +335,7 @@ export class DataTierApplicationWizard {
 		additionalMeasurements.totalDurationMs = (new Date().getTime() - deployStartTime);
 		additionalMeasurements.deployDacpacFileSizeBytes = await utils.tryGetFileSize(this.model.filePath);
 		additionalProps.upgradeExistingDatabase = this.model.upgradeExisting.toString();
-		additionalProps.potentialDataLoss = this.model.potentialDataLoss.toString();
+		additionalProps.potentialDataLoss = this.model.potentialDataLoss?.toString();
 
 		this.sendDacFxOperationTelemetryEvent(result, TelemetryAction.DeployDacpac, additionalProps, additionalMeasurements);