diff --git a/libcutils/include/cutils/trace.h b/libcutils/include/cutils/trace.h
index 97e93f8..17a0070 100644
--- a/libcutils/include/cutils/trace.h
+++ b/libcutils/include/cutils/trace.h
@@ -75,7 +75,8 @@
 #define ATRACE_TAG_AIDL             (1<<24)
 #define ATRACE_TAG_NNAPI            (1<<25)
 #define ATRACE_TAG_RRO              (1<<26)
-#define ATRACE_TAG_LAST             ATRACE_TAG_RRO
+#define ATRACE_TAG_THERMAL          (1 << 27)
+#define ATRACE_TAG_LAST             ATRACE_TAG_THERMAL
 
 // Reserved for initialization.
 #define ATRACE_TAG_NOT_READY        (1ULL<<63)