diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 30080f6b..0aaacce4 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -175,7 +175,7 @@ jobs:
         run: |
           sudo systemctl daemon-reload
           sudo systemctl enable ndpid@lo
-          sudo systemctl start ndpid@lo
+          sudo systemctl --wait start ndpid@lo
           sudo systemctl status ndpisrvd.service ndpid@lo.service
           sudo systemctl show ndpisrvd.service ndpid@lo.service -p SubState,ActiveState
       - name: Build against libnDPI-${{ matrix.ndpi_min_version }}
diff --git a/examples/c-collectd/c-collectd.c b/examples/c-collectd/c-collectd.c
index 7ab62e91..30e8da55 100644
--- a/examples/c-collectd/c-collectd.c
+++ b/examples/c-collectd/c-collectd.c
@@ -1,6 +1,7 @@
 #include <arpa/inet.h>
 #include <errno.h>
 #include <signal.h>
+#include <stdbool.h> // ndpi_typedefs.h
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>