diff --git a/src/backend.c b/src/backend.c
index 43642a366..6ec85ae1f 100644
--- a/src/backend.c
+++ b/src/backend.c
@@ -21,8 +21,9 @@
 
 #include <import/ebmbtree.h>
 
-#include <haproxy/acl.h>
 #include <haproxy/api.h>
+#include <haproxy/acl.h>
+#include <haproxy/activity.h>
 #include <haproxy/arg.h>
 #include <haproxy/backend.h>
 #include <haproxy/channel.h>
diff --git a/src/fd.c b/src/fd.c
index 88fa3b7e5..f6665ed57 100644
--- a/src/fd.c
+++ b/src/fd.c
@@ -88,6 +88,7 @@
 #endif
 
 #include <haproxy/api.h>
+#include <haproxy/activity.h>
 #include <haproxy/cfgparse.h>
 #include <haproxy/fd.h>
 #include <haproxy/global.h>
diff --git a/src/listener.c b/src/listener.c
index bfe321604..797e866b8 100644
--- a/src/listener.c
+++ b/src/listener.c
@@ -19,6 +19,7 @@
 
 #include <haproxy/acl.h>
 #include <haproxy/api.h>
+#include <haproxy/activity.h>
 #include <haproxy/cfgparse.h>
 #include <haproxy/connection.h>
 #include <haproxy/errors.h>
diff --git a/src/pool.c b/src/pool.c
index ad63d9ba3..e6669fbae 100644
--- a/src/pool.c
+++ b/src/pool.c
@@ -11,7 +11,7 @@
  */
 #include <errno.h>
 
-#include <haproxy/activity-t.h>
+#include <haproxy/activity.h>
 #include <haproxy/api.h>
 #include <haproxy/applet-t.h>
 #include <haproxy/cfgparse.h>
diff --git a/src/sock.c b/src/sock.c
index a1e545f9b..d05cf7e69 100644
--- a/src/sock.c
+++ b/src/sock.c
@@ -26,6 +26,7 @@
 #include <net/if.h>
 
 #include <haproxy/api.h>
+#include <haproxy/activity.h>
 #include <haproxy/connection.h>
 #include <haproxy/listener.h>
 #include <haproxy/log.h>
diff --git a/src/stats.c b/src/stats.c
index 7db4c9029..2b5c0e508 100644
--- a/src/stats.c
+++ b/src/stats.c
@@ -25,6 +25,7 @@
 #include <sys/types.h>
 
 #include <haproxy/api.h>
+#include <haproxy/activity.h>
 #include <haproxy/applet-t.h>
 #include <haproxy/backend.h>
 #include <haproxy/base64.h>
diff --git a/src/task.c b/src/task.c
index ce544c12d..34c8624c9 100644
--- a/src/task.c
+++ b/src/task.c
@@ -16,6 +16,7 @@
 #include <import/eb32tree.h>
 
 #include <haproxy/api.h>
+#include <haproxy/activity.h>
 #include <haproxy/cfgparse.h>
 #include <haproxy/fd.h>
 #include <haproxy/list.h>