diff --git a/x-pack/plugins/synthetics/server/synthetics_service/synthetics_service.ts b/x-pack/plugins/synthetics/server/synthetics_service/synthetics_service.ts
index eae3fb0082030..561a0e5a90e4c 100644
--- a/x-pack/plugins/synthetics/server/synthetics_service/synthetics_service.ts
+++ b/x-pack/plugins/synthetics/server/synthetics_service/synthetics_service.ts
@@ -608,7 +608,7 @@ export class SyntheticsService {
       await encryptedClient.createPointInTimeFinderDecryptedAsInternalUser<SyntheticsParams>({
         type: syntheticsParamType,
         perPage: 1000,
-        namespaces: spaceId ? [spaceId] : undefined,
+        namespaces: spaceId ? [spaceId] : [ALL_SPACES_ID],
       });
 
     for await (const response of finder.find()) {