diff --git a/package/linux-pam/Config.in b/package/linux-pam/Config.in
index b17716f2f7..c8aca97ac6 100644
--- a/package/linux-pam/Config.in
+++ b/package/linux-pam/Config.in
@@ -6,6 +6,7 @@ config BR2_PACKAGE_LINUX_PAM
 	depends on BR2_USE_MMU # fork()
 	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # C11/stdatomic.h
 	select BR2_PACKAGE_FLEX
+	select BR2_PACKAGE_LIBXCRYPT if BR2_TOOLCHAIN_USES_GLIBC
 	help
 	  A Security Framework that Provides Authentication for
 	  Applications