diff --git a/src/openvpn/proxy.c b/src/openvpn/proxy.c
index c3ad7de..7b5a289 100644
--- a/src/openvpn/proxy.c
+++ b/src/openvpn/proxy.c
@@ -523,6 +523,10 @@
 void
 http_proxy_close(struct http_proxy_info *hp)
 {
+    if (hp)
+    {
+        free(hp->proxy_authenticate);
+    }
     free(hp);
 }