diff --git a/src/devices/wwan/nm-modem-manager.c b/src/devices/wwan/nm-modem-manager.c
index c472bc4206..e2e5f5cbdd 100644
--- a/src/devices/wwan/nm-modem-manager.c
+++ b/src/devices/wwan/nm-modem-manager.c
@@ -28,6 +28,7 @@
 
 #include "nm-modem-manager.h"
 #include "nm-default.h"
+#include "nm-dbus-compat.h"
 #include "nm-modem.h"
 #include "nm-modem-broadband.h"