diff --git a/src/interfaces/libpq/fe-connect.c b/src/interfaces/libpq/fe-connect.c
index 1b7175d9ef..74e26edad6 100644
--- a/src/interfaces/libpq/fe-connect.c
+++ b/src/interfaces/libpq/fe-connect.c
@@ -1983,6 +1983,7 @@ keep_going:						/* We will come back to here until there is
 						continue;
 					}
 
+#ifdef F_SETFD
 					if (fcntl(conn->sock, F_SETFD, FD_CLOEXEC) == -1)
 					{
 						appendPQExpBuffer(&conn->errorMessage,
@@ -1992,6 +1993,7 @@ keep_going:						/* We will come back to here until there is
 						conn->addr_cur = addr_cur->ai_next;
 						continue;
 					}
+#endif   /* F_SETFD */
 
 					if (!IS_AF_UNIX(addr_cur->ai_family))
 					{