diff --git a/samples/posix/eventfd/prj.conf b/samples/posix/eventfd/prj.conf
index af6bfd12d86..ab7c7475bef 100644
--- a/samples/posix/eventfd/prj.conf
+++ b/samples/posix/eventfd/prj.conf
@@ -1,5 +1,6 @@
 # General config
 CONFIG_NEWLIB_LIBC=y
+CONFIG_NEWLIB_LIBC_NANO=n
 CONFIG_POSIX_API=y
 CONFIG_EVENTFD=y