diff --git a/samples/cellular/lwm2m_client/prj.conf b/samples/cellular/lwm2m_client/prj.conf
index 3dee8af0e080..a4dda6d90de5 100644
--- a/samples/cellular/lwm2m_client/prj.conf
+++ b/samples/cellular/lwm2m_client/prj.conf
@@ -164,3 +164,7 @@ CONFIG_NET_SOCKETPAIR=y
 CONFIG_LWM2M_TICKLESS=y
 # Enable Release Assistance Indication
 CONFIG_LWM2M_CLIENT_UTILS_RAI=y
+
+# Enable Zephyr's ZVFS event file descriptor
+CONFIG_ZVFS_EVENTFD=y
+CONFIG_ZVFS_EVENTFD_MAX=2