diff --git a/source/adios2/toolkit/sst/cp/cp_writer.c b/source/adios2/toolkit/sst/cp/cp_writer.c
index 2ae0b122fc..4ebce0ffb5 100644
--- a/source/adios2/toolkit/sst/cp/cp_writer.c
+++ b/source/adios2/toolkit/sst/cp/cp_writer.c
@@ -19,8 +19,6 @@
 #include "adios2/toolkit/profiling/taustubs/taustubs.h"
 #include "cp_internal.h"
 
-#define gettid() pthread_self()
-
 static void CP_PeerFailCloseWSReader(WS_ReaderInfo CP_WSR_Stream,
                                      enum StreamStatus NewState);