diff --git a/zephyr/prj_base.conf b/zephyr/prj_base.conf
index 50b195b2f7..4f3ff5035a 100644
--- a/zephyr/prj_base.conf
+++ b/zephyr/prj_base.conf
@@ -24,6 +24,11 @@ CONFIG_DNS_RESOLVER_ADDITIONAL_QUERIES=2
 CONFIG_DNS_SERVER_IP_ADDRESSES=y
 CONFIG_DNS_SERVER1="192.0.2.2"
 
+# Diagnostics and debugging
+
+# Required for zephyr.stack_analyze()
+CONFIG_INIT_STACKS=y
+
 # Required for usocket.pkt_get_info()
 CONFIG_NET_BUF_POOL_USAGE=y