diff --git a/tests/testcolumnview.c b/tests/testcolumnview.c
index 4039e9ec79..b09888de8e 100644
--- a/tests/testcolumnview.c
+++ b/tests/testcolumnview.c
@@ -222,7 +222,7 @@ row_data_free (gpointer _data)
 
   row_data_unbind (data);
 
-  g_slice_free (RowData, data);
+  g_free (data);
 }
 
 static void
@@ -232,7 +232,7 @@ setup_widget (GtkListItem *list_item,
   GtkWidget *box, *child;
   RowData *data;
 
-  data = g_slice_new0 (RowData);
+  data = g_new0 (RowData, 1);
   g_signal_connect (list_item, "notify::item", G_CALLBACK (row_data_notify_item), data);
   g_object_set_data_full (G_OBJECT (list_item), "row-data", data, row_data_free);
 
diff --git a/tests/testlistview.c b/tests/testlistview.c
index f0f172f98f..d29ad88a06 100644
--- a/tests/testlistview.c
+++ b/tests/testlistview.c
@@ -479,7 +479,7 @@ row_data_free (gpointer _data)
 
   row_data_unbind (data);
 
-  g_slice_free (RowData, data);
+  g_free (data);
 }
 
 static void
@@ -489,7 +489,7 @@ setup_widget (GtkSignalListItemFactory *factory,
   GtkWidget *box, *child;
   RowData *data;
 
-  data = g_slice_new0 (RowData);
+  data = g_new0 (RowData, 1);
 
   box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
   gtk_list_item_set_child (list_item, box);
diff --git a/tests/video-timer.c b/tests/video-timer.c
index 1a8a04da05..c7667124cf 100644
--- a/tests/video-timer.c
+++ b/tests/video-timer.c
@@ -107,7 +107,7 @@ create_frames_thread (gpointer data)
 
   while (TRUE)
     {
-      FrameData *frame_data = g_slice_new0 (FrameData);
+      FrameData *frame_data = g_new0 (FrameData, 1);
       frame_data->angle = 2 * M_PI * (frame_count % fps) / (double)fps;
       frame_data->stream_time = (G_GINT64_CONSTANT (1000000) * frame_count) / fps;
 
@@ -266,7 +266,7 @@ collect_old_frames (void)
       if (remove)
         {
           past_frames = g_list_delete_link (past_frames, l);
-          g_slice_free (FrameData, frame_data);
+          g_free (frame_data);
         }
     }
 }
@@ -329,7 +329,7 @@ on_update (GdkFrameClock *frame_clock,
               stream_time_to_clock_time (next_frame->stream_time)
               < predicted_presentation_time + refresh_interval / 2)
             {
-              g_slice_free (FrameData, unqueue_frame ());
+              g_free (unqueue_frame ());
               n_frames++;
               dropped_frames++;
               pending_frame = next_frame;