diff --git a/src/sheet/part-item.c b/src/sheet/part-item.c
index 5f0647bb..90cdd441 100644
--- a/src/sheet/part-item.c
+++ b/src/sheet/part-item.c
@@ -510,8 +510,6 @@ static void edit_properties_point (PartItem *item)
 		}
 	}
 	gtk_widget_destroy (GTK_WIDGET (prop_dialog->dialog));
-
-	g_free (prop_dialog);
 }
 
 static void edit_properties (SheetItem *object)
@@ -657,8 +655,6 @@ static void edit_properties (SheetItem *object)
 	prop_dialog_response (GTK_WIDGET (prop_dialog->dialog), response, prop_dialog);
 
 	gtk_widget_destroy (GTK_WIDGET (prop_dialog->dialog));
-
-	g_free (prop_dialog);
 }
 
 inline static GooCanvasAnchorType angle_to_anchor (int angle)