diff --git a/debuggerd/utility.h b/debuggerd/utility.h
index 136f46d..8d31e5e 100644
--- a/debuggerd/utility.h
+++ b/debuggerd/utility.h
@@ -24,7 +24,9 @@
 typedef struct {
     /* tombstone file descriptor */
     int tfd;
-    /* if true, does not log anything to the Android logcat */
+    /* Activity Manager socket file descriptor */
+    int amfd;
+    /* if true, does not log anything to the Android logcat or Activity Manager */
     bool quiet;
 } log_t;