diff --git a/ext/oci8/oci8.c b/ext/oci8/oci8.c
index 06bfccfd4ed..8e66cac9923 100644
--- a/ext/oci8/oci8.c
+++ b/ext/oci8/oci8.c
@@ -1055,10 +1055,14 @@ php_oci_connection *php_oci_do_connect_ex(char *username, int username_len, char
 							/* server died */
 						}
 						else {
+							int rsrc_type;
+
 							/* okay, the connection is open and the server is still alive */
 							connection->used_this_request = 1;
 							smart_str_free_ex(&hashed_details, 0);
-							if (zend_list_addref(connection->rsrc_id) == FAILURE) {
+							if (zend_list_find(connection->rsrc_id, &rsrc_type) && (rsrc_type == le_pconnection) && zend_list_addref(connection->rsrc_id) == SUCCESS) {
+								/* do nothing */
+							} else {
 								connection->rsrc_id = zend_list_insert(connection, le_pconnection);
 							}
 							return connection;