diff --git a/ext/oci8/php_oci8.h b/ext/oci8/php_oci8.h
index 2dc3b148899..b3525da261a 100644
--- a/ext/oci8/php_oci8.h
+++ b/ext/oci8/php_oci8.h
@@ -83,18 +83,13 @@ typedef struct {
 
 typedef struct {
     int id;
-    int open;
     oci_connection *conn;
-    oci_session *session;
-    OCISvcCtx   *pServiceContext;
     OCIType     *tdo;
     OCITypeCode coll_typecode;
     OCIRef      *elem_ref;
     OCIType     *element_type;
     OCITypeCode element_typecode;
     OCIColl     *coll;
-    sword       error;
-    OCIError    *pError;
 } oci_collection;
 
 typedef struct {