diff --git a/configure.ac b/configure.ac
index 62e8889..9735db9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -112,6 +112,7 @@ AC_CHECK_HEADERS([arpa/inet.h fcntl.h limits.h netdb.h netinet/in.h \
 AC_C_INLINE
 AC_CHECK_MEMBERS([struct stat.st_rdev],,
 	AC_MSG_ERROR([no st_rdev member in struct stat]))
+AC_CHECK_DECLS([strndupa])
 AC_TYPE_SIZE_T
 AC_TYPE_UID_T
 m4_ifdef([AC_TYPE_UINT16_T], [AC_TYPE_UINT16_T])
diff --git a/include/strndupa.h b/include/strndupa.h
new file mode 100644
index 0000000..fbeba68
--- /dev/null
+++ b/include/strndupa.h
@@ -0,0 +1,16 @@
+#pragma once
+
+/**
+ * Reimplementation of glibc strndupa
+ * http://lists.freedesktop.org/archives/systemd-devel/2014-September/023190.html
+ */
+#if !HAVE_DECL_STRNDUPA
+#define strndupa(s, n)						\
+	({							\
+		const char *__old = (s);			\
+		size_t __len = strnlen(__old, (n));		\
+		char *__new = (char *)alloca(__len + 1);	\
+		__new[__len] = '\0';				\
+		(char *)memcpy(__new, __old, __len);		\
+	})
+#endif
diff --git a/src/lib/net.c b/src/lib/net.c
index 6ac3008..d7f2078 100644
--- a/src/lib/net.c
+++ b/src/lib/net.c
@@ -41,6 +41,7 @@
 #include "script.h"
 #include "util.h"
 #include "vps_configure.h"
+#include "strndupa.h"
 
 
 char *find_ip(list_head_t *ip_h, const char *ipaddr)
diff --git a/src/lib/util.c b/src/lib/util.c
index 9712333..29c981a 100644
--- a/src/lib/util.c
+++ b/src/lib/util.c
@@ -33,6 +33,7 @@
 #include "util.h"
 #include "logger.h"
 #include "fs.h"
+#include "strndupa.h"
 
 #ifndef NR_OPEN
 #define NR_OPEN 1024