--- a/src/libstrongswan/library.h
+++ b/src/libstrongswan/library.h
@@ -118,6 +118,7 @@
 #include "utils/leak_detective.h"
 #include "plugins/plugin_loader.h"
 #include "settings/settings.h"
+#include "musl.h"
 
 typedef struct library_t library_t;
 
--- /dev/null
+++ b/src/libstrongswan/musl.h
@@ -0,0 +1,27 @@
+#include <sys/types.h>
+
+#define crypt x_crypt
+#define encrypt x_encrypt
+#include <unistd.h>
+
+#define fd_set x_fd_set
+#define ino_t x_ino_t
+#define off_t x_off_t
+#define loff_t x_loff_t
+#define dev_t x_dev_t
+#define nlink_t x_nlink_t
+#define timer_t x_timer_t
+#define blkcnt_t x_blkcnt_t
+#define __kernel_nlink_t void
+
+#include <linux/types.h>
+
+#undef fd_set
+#undef ino_t
+#undef off_t
+#undef dev_t
+#undef nlink_t
+#undef timer_t
+#undef blkcnt_t
+#undef crypt
+#undef encrypt
--- a/src/libhydra/plugins/kernel_netlink/kernel_netlink_ipsec.c
+++ b/src/libhydra/plugins/kernel_netlink/kernel_netlink_ipsec.c
@@ -18,6 +18,8 @@
  * for more details.
  */
 
+#include <musl.h>
+
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <stdint.h>
--- a/src/libhydra/plugins/kernel_netlink/kernel_netlink_net.c
+++ b/src/libhydra/plugins/kernel_netlink/kernel_netlink_net.c
@@ -37,6 +37,8 @@
  * THE SOFTWARE.
  */
 
+#include "musl.h"
+
 #include <sys/socket.h>
 #include <sys/utsname.h>
 #include <linux/netlink.h>
--- a/src/libhydra/plugins/kernel_netlink/kernel_netlink_shared.c
+++ b/src/libhydra/plugins/kernel_netlink/kernel_netlink_shared.c
@@ -15,6 +15,8 @@
  * for more details.
  */
 
+#include "musl.h"
+
 #include <sys/socket.h>
 #include <linux/netlink.h>
 #include <linux/rtnetlink.h>