diff --git a/libfwupdplugin/fu-plugin.c b/libfwupdplugin/fu-plugin.c
index 342b720e2..b11d9c519 100644
--- a/libfwupdplugin/fu-plugin.c
+++ b/libfwupdplugin/fu-plugin.c
@@ -48,8 +48,8 @@ typedef struct {
 	GPtrArray		*udev_subsystems;
 	FuSmbios		*smbios;
 	GType			 device_gtype;
-	GHashTable		*devices;		/* (nullable): platform_id:GObject */
-	GRWLock			 devices_mutex;
+	GHashTable		*cache;			/* (nullable): platform_id:GObject */
+	GRWLock			 cache_mutex;
 	GHashTable		*report_metadata;	/* (nullable): key:value */
 	FuPluginData		*data;
 } FuPluginPrivate;
@@ -209,13 +209,13 @@ gpointer
 fu_plugin_cache_lookup (FuPlugin *self, const gchar *id)
 {
 	FuPluginPrivate *priv = GET_PRIVATE (self);
-	g_autoptr(GRWLockReaderLocker) locker = g_rw_lock_reader_locker_new (&priv->devices_mutex);
+	g_autoptr(GRWLockReaderLocker) locker = g_rw_lock_reader_locker_new (&priv->cache_mutex);
 	g_return_val_if_fail (FU_IS_PLUGIN (self), NULL);
 	g_return_val_if_fail (id != NULL, NULL);
 	g_return_val_if_fail (locker != NULL, NULL);
-	if (priv->devices == NULL)
+	if (priv->cache == NULL)
 		return NULL;
-	return g_hash_table_lookup (priv->devices, id);
+	return g_hash_table_lookup (priv->cache, id);
 }
 
 /**
@@ -232,17 +232,17 @@ void
 fu_plugin_cache_add (FuPlugin *self, const gchar *id, gpointer dev)
 {
 	FuPluginPrivate *priv = GET_PRIVATE (self);
-	g_autoptr(GRWLockWriterLocker) locker = g_rw_lock_writer_locker_new (&priv->devices_mutex);
+	g_autoptr(GRWLockWriterLocker) locker = g_rw_lock_writer_locker_new (&priv->cache_mutex);
 	g_return_if_fail (FU_IS_PLUGIN (self));
 	g_return_if_fail (id != NULL);
 	g_return_if_fail (locker != NULL);
-	if (priv->devices == NULL) {
-		priv->devices = g_hash_table_new_full (g_str_hash,
-						       g_str_equal,
-						       g_free,
-						       (GDestroyNotify) g_object_unref);
+	if (priv->cache == NULL) {
+		priv->cache = g_hash_table_new_full (g_str_hash,
+						     g_str_equal,
+						     g_free,
+						     (GDestroyNotify) g_object_unref);
 	}
-	g_hash_table_insert (priv->devices, g_strdup (id), g_object_ref (dev));
+	g_hash_table_insert (priv->cache, g_strdup (id), g_object_ref (dev));
 }
 
 /**
@@ -258,13 +258,13 @@ void
 fu_plugin_cache_remove (FuPlugin *self, const gchar *id)
 {
 	FuPluginPrivate *priv = GET_PRIVATE (self);
-	g_autoptr(GRWLockWriterLocker) locker = g_rw_lock_writer_locker_new (&priv->devices_mutex);
+	g_autoptr(GRWLockWriterLocker) locker = g_rw_lock_writer_locker_new (&priv->cache_mutex);
 	g_return_if_fail (FU_IS_PLUGIN (self));
 	g_return_if_fail (id != NULL);
 	g_return_if_fail (locker != NULL);
-	if (priv->devices == NULL)
+	if (priv->cache == NULL)
 		return;
-	g_hash_table_remove (priv->devices, id);
+	g_hash_table_remove (priv->cache, id);
 }
 
 /**
@@ -2881,7 +2881,7 @@ static void
 fu_plugin_init (FuPlugin *self)
 {
 	FuPluginPrivate *priv = GET_PRIVATE (self);
-	g_rw_lock_init (&priv->devices_mutex);
+	g_rw_lock_init (&priv->cache_mutex);
 }
 
 static void
@@ -2891,7 +2891,7 @@ fu_plugin_finalize (GObject *object)
 	FuPluginPrivate *priv = GET_PRIVATE (self);
 	FuPluginInitFunc func = NULL;
 
-	g_rw_lock_clear (&priv->devices_mutex);
+	g_rw_lock_clear (&priv->cache_mutex);
 
 	/* optional */
 	if (priv->module != NULL) {
@@ -2922,8 +2922,8 @@ fu_plugin_finalize (GObject *object)
 		g_hash_table_unref (priv->compile_versions);
 	if (priv->report_metadata != NULL)
 		g_hash_table_unref (priv->report_metadata);
-	if (priv->devices != NULL)
-		g_hash_table_unref (priv->devices);
+	if (priv->cache != NULL)
+		g_hash_table_unref (priv->cache);
 	g_free (priv->build_hash);
 	g_free (priv->data);
 	/* Must happen as the last step to avoid prematurely