diff --git a/package/polkit/Config.in b/package/polkit/Config.in
index ca3323931c..fda6c984d7 100644
--- a/package/polkit/Config.in
+++ b/package/polkit/Config.in
@@ -10,6 +10,7 @@ config BR2_PACKAGE_POLKIT
 	select BR2_PACKAGE_DUKTAPE
 	select BR2_PACKAGE_EXPAT
 	select BR2_PACKAGE_LIBGLIB2
+	select BR2_PACKAGE_LIBXCRYPT if BR2_TOOLCHAIN_USES_GLIBC
 	help
 	  PolicyKit is a toolkit for defining and handling
 	  authorizations. It is used for allowing unprivileged
diff --git a/package/polkit/polkit.mk b/package/polkit/polkit.mk
index e393672c1e..cdbbf8f9b0 100644
--- a/package/polkit/polkit.mk
+++ b/package/polkit/polkit.mk
@@ -30,6 +30,10 @@ else
 POLKIT_CONF_OPTS += -Dintrospection=false
 endif
 
+ifeq ($(BR2_PACKAGE_LIBXCRYPT),y)
+POLKIT_DEPENDENCIES += libxcrypt
+endif
+
 ifeq ($(BR2_PACKAGE_LINUX_PAM),y)
 POLKIT_DEPENDENCIES += linux-pam
 POLKIT_CONF_OPTS += -Dauthfw=pam