diff --git a/portfolio/boxnet/classes/privacy/provider.php b/portfolio/boxnet/classes/privacy/provider.php
index fb0a82f5e05..354bff812bb 100644
--- a/portfolio/boxnet/classes/privacy/provider.php
+++ b/portfolio/boxnet/classes/privacy/provider.php
@@ -36,6 +36,7 @@ use core_privacy\local\metadata\collection;
 class provider implements
     // This portfolio plugin does not store any data itself.
     // It has no database tables, and it purely acts as a conduit, sending data externally.
+    \core_privacy\local\metadata\provider,
     \core_portfolio\privacy\portfolio_provider {
 
     /**
diff --git a/portfolio/flickr/classes/privacy/provider.php b/portfolio/flickr/classes/privacy/provider.php
index f1b96c9d1c4..090b1eb83f0 100644
--- a/portfolio/flickr/classes/privacy/provider.php
+++ b/portfolio/flickr/classes/privacy/provider.php
@@ -36,6 +36,7 @@ use core_privacy\local\metadata\collection;
 class provider implements
         // This portfolio plugin does not store any data itself.
         // It has no database tables, and it purely acts as a conduit, sending data externally.
+        \core_privacy\local\metadata\provider,
         \core_portfolio\privacy\portfolio_provider {
 
     /**
diff --git a/portfolio/googledocs/classes/privacy/provider.php b/portfolio/googledocs/classes/privacy/provider.php
index f8734afcee3..9fe739a7358 100644
--- a/portfolio/googledocs/classes/privacy/provider.php
+++ b/portfolio/googledocs/classes/privacy/provider.php
@@ -36,6 +36,7 @@ use core_privacy\local\metadata\collection;
 class provider implements
         // This portfolio plugin does not store any data itself.
         // It has no database tables, and it purely acts as a conduit, sending data externally.
+        \core_privacy\local\metadata\provider,
         \core_portfolio\privacy\portfolio_provider {
 
     /**
diff --git a/portfolio/mahara/classes/privacy/provider.php b/portfolio/mahara/classes/privacy/provider.php
index be1719e83a3..a8731be01e0 100644
--- a/portfolio/mahara/classes/privacy/provider.php
+++ b/portfolio/mahara/classes/privacy/provider.php
@@ -36,6 +36,7 @@ use core_privacy\local\metadata\collection;
 class provider implements
         // This portfolio plugin does not store any data itself.
         // It has no database tables, and it purely acts as a conduit, sending data externally.
+        \core_privacy\local\metadata\provider,
         \core_portfolio\privacy\portfolio_provider {
 
     /**
diff --git a/portfolio/picasa/classes/privacy/provider.php b/portfolio/picasa/classes/privacy/provider.php
index 79e03382a6e..4f2fafe2d78 100644
--- a/portfolio/picasa/classes/privacy/provider.php
+++ b/portfolio/picasa/classes/privacy/provider.php
@@ -36,6 +36,7 @@ use core_privacy\local\metadata\collection;
 class provider implements
         // This portfolio plugin does not store any data itself.
         // It has no database tables, and it purely acts as a conduit, sending data externally.
+        \core_privacy\local\metadata\provider,
         \core_portfolio\privacy\portfolio_provider {
 
     /**