diff --git a/include/cutils/trace.h b/include/cutils/trace.h
index 0f00417..fcbdc9b 100644
--- a/include/cutils/trace.h
+++ b/include/cutils/trace.h
@@ -71,7 +71,8 @@
 #define ATRACE_TAG_SYSTEM_SERVER    (1<<19)
 #define ATRACE_TAG_DATABASE         (1<<20)
 #define ATRACE_TAG_NETWORK          (1<<21)
-#define ATRACE_TAG_LAST             ATRACE_TAG_NETWORK
+#define ATRACE_TAG_ADB              (1<<22)
+#define ATRACE_TAG_LAST             ATRACE_TAG_ADB
 
 // Reserved for initialization.
 #define ATRACE_TAG_NOT_READY        (1ULL<<63)