diff --git a/test/object-store/schema.cpp b/test/object-store/schema.cpp
index 33846e3920e..58268e213d4 100644
--- a/test/object-store/schema.cpp
+++ b/test/object-store/schema.cpp
@@ -372,7 +372,8 @@ TEST_CASE("Schema") {
                  ObjectSchema::ObjectType::TopLevelAsymmetric,
                  {{"_id", PropertyType::Int, Property::IsPrimary{true}}, {"street", PropertyType::String}}},
             };
-            REQUIRE_NOTHROW(schema.validate(SchemaValidationMode::Sync));
+            REQUIRE_NOTHROW(schema.validate(SchemaValidationMode::SyncFLX));
+            REQUIRE_THROWS(schema.validate(SchemaValidationMode::SyncPBS));
         }
 
         SECTION("asymmetric tables not allowed in local realm") {
@@ -392,7 +393,7 @@ TEST_CASE("Schema") {
                  {{"_id", PropertyType::Int, Property::IsPrimary{true}}}},
             };
             REQUIRE_THROWS_CONTAINING(
-                schema.validate(SchemaValidationMode::Sync),
+                schema.validate(SchemaValidationMode::SyncFLX),
                 "Property 'object.link' of type 'object' cannot be a link to an asymmetric object.");
         }
 
@@ -403,7 +404,7 @@ TEST_CASE("Schema") {
                  {{"link", PropertyType::Object | PropertyType::Nullable, "link target"}}},
                 {"link target", {{"value", PropertyType::Int}}},
             };
-            REQUIRE_THROWS_CONTAINING(schema.validate(SchemaValidationMode::Sync),
+            REQUIRE_THROWS_CONTAINING(schema.validate(SchemaValidationMode::SyncFLX),
                                       "Asymmetric table with property 'object.link' of type 'object' cannot have a "
                                       "non-embedded object type.");
         }
@@ -416,7 +417,7 @@ TEST_CASE("Schema") {
                   {"link", PropertyType::Object | PropertyType::Nullable, "link target"}}},
                 {"link target", ObjectSchema::ObjectType::Embedded, {{"value", PropertyType::Int}}},
             };
-            schema.validate(SchemaValidationMode::Sync);
+            schema.validate(SchemaValidationMode::SyncFLX);
         }
 
         SECTION("rejects array properties with no target object") {
diff --git a/test/object-store/sync/flx_sync.cpp b/test/object-store/sync/flx_sync.cpp
index 4fa4432ce23..6caba2d9693 100644
--- a/test/object-store/sync/flx_sync.cpp
+++ b/test/object-store/sync/flx_sync.cpp
@@ -1950,6 +1950,21 @@ TEST_CASE("flx: asymmetric sync", "[sync][flx][app]") {
         });
     }
 
+    SECTION("asymmetric table not allowed in PBS") {
+        Schema schema{
+            {"Asymmetric2",
+             ObjectSchema::ObjectType::TopLevelAsymmetric,
+             {
+                 {"_id", PropertyType::Int, Property::IsPrimary{true}},
+                 {"location", PropertyType::Int},
+                 {"reading", PropertyType::Int},
+             }},
+        };
+
+        SyncTestFile config(harness->app(), bson::Bson{}, schema);
+        REQUIRE_THROWS(Realm::get_shared_realm(config));
+    }
+
     // Add any new test sections above this point
 
     SECTION("teardown") {