diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index a6112a1e0..d4583fe25 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -24,6 +24,7 @@
 #include <net/addrconf.h>
 
 int sysctl_tcp_pingpong_thresh __read_mostly = 3;
+EXPORT_SYMBOL(sysctl_tcp_pingpong_thresh);
 
 #if IS_ENABLED(CONFIG_IPV6)
 /* match_sk*_wildcard == true:  IPV6_ADDR_ANY equals to any IPv6 addresses