diff --git a/src/interfaces/libpq/fe-protocol3.c b/src/interfaces/libpq/fe-protocol3.c
index 8ab6a88..ce0f61f 100644
--- a/src/interfaces/libpq/fe-protocol3.c
+++ b/src/interfaces/libpq/fe-protocol3.c
@@ -2269,6 +2269,8 @@ build_startup_packet(const PGconn *conn, char *packet,
 
 	if (conn->pguser && conn->pguser[0])
 		ADD_STARTUP_OPTION("user", conn->pguser);
+	if (conn->pghost && conn->pghost[0])
+		ADD_STARTUP_OPTION("host", conn->pghost);
 	if (conn->dbName && conn->dbName[0])
 		ADD_STARTUP_OPTION("database", conn->dbName);
 	if (conn->replication && conn->replication[0])