diff --git a/src/Canvas.cc b/src/Canvas.cc
index c19622a..da1939a 100644
--- a/src/Canvas.cc
+++ b/src/Canvas.cc
@@ -407,6 +407,8 @@ Canvas::~Canvas() {
   switch (type) {
     case CANVAS_TYPE_PDF:
       closure_destroy((closure_t *) _closure);
+      free(_closure);
+      cairo_surface_destroy(_surface);
       break;
     case CANVAS_TYPE_IMAGE:
       cairo_surface_destroy(_surface);