diff --git a/ges/ges-extractable.h b/ges/ges-extractable.h
index f7cbb1e26a..839a825ac7 100644
--- a/ges/ges-extractable.h
+++ b/ges/ges-extractable.h
@@ -72,7 +72,7 @@ struct _GESExtractableInterface
                                          const gchar *id);
 
   gboolean (*register_metas)            (GESExtractableInterface *self,
-                                         GObjectClass *class,
+                                         GObjectClass *klass,
                                          GESAsset *asset);
 
   gpointer _ges_reserved[GES_PADDING];
diff --git a/ges/ges-formatter.h b/ges/ges-formatter.h
index dc9b6c51e3..ef2a355600 100644
--- a/ges/ges-formatter.h
+++ b/ges/ges-formatter.h
@@ -135,7 +135,7 @@ struct _GESFormatterClass {
 
 GType ges_formatter_get_type (void);
 
-void ges_formatter_class_register_metas (GESFormatterClass * class,
+void ges_formatter_class_register_metas (GESFormatterClass * klass,
                                          const gchar *name,
                                          const gchar *description,
                                          const gchar *extension,
diff --git a/ges/ges-uri-asset.h b/ges/ges-uri-asset.h
index 79cbcf031f..d6b47f1b7c 100644
--- a/ges/ges-uri-asset.h
+++ b/ges/ges-uri-asset.h
@@ -75,7 +75,7 @@ void ges_uri_clip_asset_new                         (const gchar *uri,
                                                      GAsyncReadyCallback callback,
                                                      gpointer user_data);
 GESUriClipAsset* ges_uri_clip_asset_request_sync    (const gchar *uri, GError **error);
-void ges_uri_clip_asset_class_set_timeout           (GESUriClipAssetClass *class,
+void ges_uri_clip_asset_class_set_timeout           (GESUriClipAssetClass *klass,
                                                      GstClockTime timeout);
 const GList * ges_uri_clip_asset_get_stream_assets  (GESUriClipAsset *self);