diff --git a/contrib/embeddable-wg-library/wireguard.h b/contrib/embeddable-wg-library/wireguard.h
index 9ebe47c..e7a1bbf 100644
--- a/contrib/embeddable-wg-library/wireguard.h
+++ b/contrib/embeddable-wg-library/wireguard.h
@@ -16,6 +16,12 @@
 typedef uint8_t wg_key[32];
 typedef char wg_key_b64_string[((sizeof(wg_key) + 2) / 3) * 4 + 1];
 
+/* Cross platform __kernel_timespec */
+struct timespec64 {
+	int64_t tv_sec;
+	int64_t tv_nsec;
+};
+
 typedef struct wg_allowedip {
 	uint16_t family;
 	union {
@@ -46,7 +52,7 @@ typedef struct wg_peer {
 		struct sockaddr_in6 addr6;
 	} endpoint;
 
-	struct timespec last_handshake_time;
+	struct timespec64 last_handshake_time;
 	uint64_t rx_bytes, tx_bytes;
 	uint16_t persistent_keepalive_interval;
 
diff --git a/src/containers.h b/src/containers.h
index 2144052..59a213e 100644
--- a/src/containers.h
+++ b/src/containers.h
@@ -15,6 +15,12 @@
 
 #include "../uapi/wireguard.h"
 
+/* Cross platform __kernel_timespec */
+struct timespec64 {
+	int64_t tv_sec;
+	int64_t tv_nsec;
+};
+
 struct wgallowedip {
 	uint16_t family;
 	union {
@@ -45,7 +51,7 @@ struct wgpeer {
 		struct sockaddr_in6 addr6;
 	} endpoint;
 
-	struct timespec last_handshake_time;
+	struct timespec64 last_handshake_time;
 	uint64_t rx_bytes, tx_bytes;
 	uint16_t persistent_keepalive_interval;
 
diff --git a/src/ipc.c b/src/ipc.c
index da31eff..7ab3a62 100644
--- a/src/ipc.c
+++ b/src/ipc.c
@@ -420,9 +420,9 @@ static int userspace_get_device(struct wgdevice **out, const char *interface)
 			if (*end || allowedip->family == AF_UNSPEC || (allowedip->family == AF_INET6 && allowedip->cidr > 128) || (allowedip->family == AF_INET && allowedip->cidr > 32))
 				break;
 		} else if (peer && !strcmp(key, "last_handshake_time_sec"))
-			peer->last_handshake_time.tv_sec = NUM(0xffffffffffffffffULL);
+			peer->last_handshake_time.tv_sec = NUM(0x7fffffffffffffffULL);
 		else if (peer && !strcmp(key, "last_handshake_time_nsec"))
-			peer->last_handshake_time.tv_nsec = NUM(0xffffffffffffffffULL);
+			peer->last_handshake_time.tv_nsec = NUM(0x7fffffffffffffffULL);
 		else if (peer && !strcmp(key, "rx_bytes"))
 			peer->rx_bytes = NUM(0xffffffffffffffffULL);
 		else if (peer && !strcmp(key, "tx_bytes"))
diff --git a/src/show.c b/src/show.c
index ba6f115..4cc34ab 100644
--- a/src/show.c
+++ b/src/show.c
@@ -155,7 +155,7 @@ static size_t pretty_time(char *buf, const size_t len, unsigned long long left)
 	return offset;
 }
 
-static char *ago(const struct timespec *t)
+static char *ago(const struct timespec64 *t)
 {
 	static char buf[1024];
 	size_t offset;