diff --git a/lib/sources/sp-hostinfo-source.c b/lib/sources/sp-hostinfo-source.c
index aa2d9ba2..f315264c 100644
--- a/lib/sources/sp-hostinfo-source.c
+++ b/lib/sources/sp-hostinfo-source.c
@@ -186,7 +186,7 @@ publish_cpu (SpHostinfoSource *self)
 
   sp_capture_writer_set_counters (self->writer,
                                   SP_CAPTURE_CURRENT_TIME,
-                                  getpid (),
+                                  -1,
                                   -1,
                                   counter_ids,
                                   counter_values,