diff --git a/libc/bionic/heap_tagging.cpp b/libc/bionic/heap_tagging.cpp
index c3aa823..540372b 100644
--- a/libc/bionic/heap_tagging.cpp
+++ b/libc/bionic/heap_tagging.cpp
@@ -109,7 +109,7 @@
 #if defined(USE_SCUDO)
         scudo_malloc_set_track_allocation_stacks(0);
 #endif
-      } else if (tag_level == M_HEAP_TAGGING_LEVEL_ASYNC) {
+      } else if (tag_level == M_HEAP_TAGGING_LEVEL_SYNC) {
 #if defined(USE_SCUDO)
         scudo_malloc_set_track_allocation_stacks(1);
 #endif