--- plug-ins/python/pydia-color.c
+++ plug-ins/python/pydia-color.c
@@ -43,7 +43,7 @@
 static void
 PyDiaColor_Dealloc(PyObject *self)
 {
-  PyMem_DEL(self);
+  PyObject_DEL(self);
 }
 
 /*
--- plug-ins/python/pydia-cpoint.c
+++ plug-ins/python/pydia-cpoint.c
@@ -38,7 +38,7 @@
 static void
 PyDiaConnectionPoint_Dealloc(PyDiaConnectionPoint *self)
 {
-     PyMem_DEL(self);
+     PyObject_DEL(self);
 }
 
 static int
--- plug-ins/python/pydia-diagram.c
+++ plug-ins/python/pydia-diagram.c
@@ -50,7 +50,7 @@
 PyDiaDiagram_Dealloc(PyDiaDiagram *self)
 {
     g_object_unref(self->dia);
-    PyMem_DEL(self);
+    PyObject_DEL(self);
 }
 
 static int
--- plug-ins/python/pydia-diagramdata.c
+++ plug-ins/python/pydia-diagramdata.c
@@ -46,7 +46,7 @@
 PyDiaDiagramData_Dealloc(PyDiaDiagramData *self)
 {
     g_object_unref (self->data);
-    PyMem_DEL(self);
+    PyObject_DEL(self);
 }
 
 static int
--- plug-ins/python/pydia-display.c
+++ plug-ins/python/pydia-display.c
@@ -38,7 +38,7 @@
 static void
 PyDiaDisplay_Dealloc(PyDiaDisplay *self)
 {
-     PyMem_DEL(self);
+     PyObject_DEL(self);
 }
 
 static int
--- plug-ins/python/pydia-error.c
+++ plug-ins/python/pydia-error.c
@@ -84,7 +84,7 @@
 {
   if (self->str)
     g_string_free (self->str, TRUE);
-  PyMem_DEL(self);
+  PyObject_DEL(self);
 }
 
 /*
--- plug-ins/python/pydia-export.c
+++ plug-ins/python/pydia-export.c
@@ -37,7 +37,7 @@
 static void
 PyDiaExportFilter_Dealloc(PyDiaExportFilter *self)
 {
-     PyMem_DEL(self);
+     PyObject_DEL(self);
 }
 
 static int
--- plug-ins/python/pydia-font.c
+++ plug-ins/python/pydia-font.c
@@ -48,7 +48,7 @@
 {
   if (self->font)
     dia_font_unref (self->font);
-  PyMem_DEL(self);
+  PyObject_DEL(self);
 }
 
 /*
--- plug-ins/python/pydia-geometry.c
+++ plug-ins/python/pydia-geometry.c
@@ -135,7 +135,7 @@
 static void
 PyDiaGeometry_Dealloc(void *self)
 {
-     PyMem_DEL(self);
+     PyObject_DEL(self);
 }
 
 /*
--- plug-ins/python/pydia-handle.c
+++ plug-ins/python/pydia-handle.c
@@ -40,7 +40,7 @@
 static void
 PyDiaHandle_Dealloc(PyDiaHandle *self)
 {
-     PyMem_DEL(self);
+     PyObject_DEL(self);
 }
 
 static int
--- plug-ins/python/pydia-image.c
+++ plug-ins/python/pydia-image.c
@@ -45,7 +45,7 @@
 PyDiaImage_Dealloc(PyDiaImage *self)
 {
   dia_image_release (self->image);
-  PyMem_DEL(self);
+  PyObject_DEL(self);
 }
 
 /*
--- plug-ins/python/pydia-layer.c
+++ plug-ins/python/pydia-layer.c
@@ -38,7 +38,7 @@
 static void
 PyDiaLayer_Dealloc(PyDiaLayer *self)
 {
-     PyMem_DEL(self);
+     PyObject_DEL(self);
 }
 
 static int
--- plug-ins/python/pydia-object.c
+++ plug-ins/python/pydia-object.c
@@ -40,7 +40,7 @@
 static void
 PyDiaObject_Dealloc(PyDiaObject *self)
 {
-     PyMem_DEL(self);
+     PyObject_DEL(self);
 }
 
 static int
@@ -250,7 +250,7 @@
 static void
 PyDiaObjectType_Dealloc(PyDiaObjectType *self)
 {
-     PyMem_DEL(self);
+     PyObject_DEL(self);
 }
 
 static int
--- plug-ins/python/pydia-properties.c
+++ plug-ins/python/pydia-properties.c
@@ -46,7 +46,7 @@
 PyDiaProperties_Dealloc(PyDiaObject *self)
 {
   self->object = NULL; /* XXX: should dec ref */
-  PyMem_DEL(self);
+  PyObject_DEL(self);
 }
 
 /*
--- plug-ins/python/pydia-property.c
+++ plug-ins/python/pydia-property.c
@@ -60,7 +60,7 @@
 PyDiaProperty_Dealloc(PyDiaProperty *self)
 {
   self->property->ops->free(self->property);
-  PyMem_DEL(self);
+  PyObject_DEL(self);
 }
 
 /*
--- plug-ins/python/pydia-text.c
+++ plug-ins/python/pydia-text.c
@@ -49,7 +49,7 @@
 PyDiaText_Dealloc(PyDiaText *self)
 {
   g_free (self->text_data);
-  PyMem_DEL(self);
+  PyObject_DEL(self);
 }
 
 /*