diff --git a/runtime/hprof/hprof.cc b/runtime/hprof/hprof.cc
index 922fc5f..6e0e56e 100644
--- a/runtime/hprof/hprof.cc
+++ b/runtime/hprof/hprof.cc
@@ -891,8 +891,8 @@
     return;
   }
 
-  gc::space::ContinuousSpace* space =
-      Runtime::Current()->GetHeap()->FindContinuousSpaceFromObject(obj, true);
+  gc::Heap* const heap = Runtime::Current()->GetHeap();
+  const gc::space::ContinuousSpace* const space = heap->FindContinuousSpaceFromObject(obj, true);
   HprofHeapId heap_type = HPROF_HEAP_APP;
   if (space != nullptr) {
     if (space->IsZygoteSpace()) {
@@ -900,6 +900,11 @@
     } else if (space->IsImageSpace()) {
       heap_type = HPROF_HEAP_IMAGE;
     }
+  } else {
+    const auto* los = heap->GetLargeObjectsSpace();
+    if (los->Contains(obj) && los->IsZygoteLargeObject(Thread::Current(), obj)) {
+      heap_type = HPROF_HEAP_ZYGOTE;
+    }
   }
   CheckHeapSegmentConstraints();