diff --git a/package/sudo/Config.in b/package/sudo/Config.in
index ee5ea542ab..85bc4859b8 100644
--- a/package/sudo/Config.in
+++ b/package/sudo/Config.in
@@ -2,6 +2,7 @@ config BR2_PACKAGE_SUDO
 	bool "sudo"
 	# uses fork()
 	depends on BR2_USE_MMU
+	select BR2_PACKAGE_LIBXCRYPT if BR2_TOOLCHAIN_USES_GLIBC
 	help
 	  Sudo is a program designed to allow a sysadmin to give
 	  limited root privileges to users and log root activity. The
diff --git a/package/sudo/sudo.mk b/package/sudo/sudo.mk
index f57a86805a..0aacd8207d 100644
--- a/package/sudo/sudo.mk
+++ b/package/sudo/sudo.mk
@@ -37,6 +37,10 @@ else
 SUDO_CONF_OPTS += --without-pam
 endif
 
+ifeq ($(BR2_PACKAGE_LIBXCRYPT),y)
+SUDO_DEPENDENCIES += libxcrypt
+endif
+
 ifeq ($(BR2_PACKAGE_ZLIB),y)
 SUDO_CONF_OPTS += --enable-zlib
 SUDO_DEPENDENCIES += zlib