diff --git a/llkd/README.md b/llkd/README.md
index 3da7a2f36..224e184d2 100644
--- a/llkd/README.md
+++ b/llkd/README.md
@@ -160,7 +160,7 @@ size of 92.
 NB: false is a very very very unlikely process to want to blacklist.
 
 #### ro.llk.blacklist.parent
-default 0,2 (kernel and [kthreadd]).
+default 0,2,adbd (kernel, [kthreadd] and adbd).
 The string "*false*" is the equivalent to an *empty* list.
 Do not watch processes that have this parent.
 A parent process can be comm, cmdline or pid reference.
diff --git a/llkd/include/llkd.h b/llkd/include/llkd.h
index b16b1d8e3..1efa32b74 100644
--- a/llkd/include/llkd.h
+++ b/llkd/include/llkd.h
@@ -55,7 +55,11 @@ unsigned llkCheckMilliseconds(void);
 #define LLK_BLACKLIST_PROCESS_DEFAULT  \
     "0,1,2,init,[kthreadd],[khungtaskd],lmkd,llkd,watchdogd,[watchdogd],[watchdogd/0]"
 #define LLK_BLACKLIST_PARENT_PROPERTY  "ro.llk.blacklist.parent"
+#ifdef __PTRACE_ENABLED__  // defined if userdebug build
+#define LLK_BLACKLIST_PARENT_DEFAULT   "0,2,[kthreadd],adbd"
+#else
 #define LLK_BLACKLIST_PARENT_DEFAULT   "0,2,[kthreadd]"
+#endif
 #define LLK_BLACKLIST_UID_PROPERTY     "ro.llk.blacklist.uid"
 #define LLK_BLACKLIST_UID_DEFAULT      ""
 #define LLK_BLACKLIST_STACK_PROPERTY   "ro.llk.blacklist.process.stack"