diff --git a/runtime/vm/log.cc b/runtime/vm/log.cc
index 809df77308a..70669b36477 100644
--- a/runtime/vm/log.cc
+++ b/runtime/vm/log.cc
@@ -161,8 +161,11 @@ intptr_t Log::cursor() const {
 
 bool Log::ShouldLogForIsolateGroup(const IsolateGroup* isolate_group) {
   if (FLAG_isolate_log_filter == nullptr) {
+    // By default, do not log for the service or kernel isolates.
+    if (isolate_group == Dart::vm_isolate_group()) {
+      return true;
+    }
     if (IsolateGroup::IsSystemIsolateGroup(isolate_group)) {
-      // By default, do not log for the service or kernel isolates.
       return false;
     }
     return true;