diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 99fc791cf0..160aeacce8 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2013-05-20  Tom Tromey  <tromey@redhat.com>
+
+	* python/py-prettyprint.c (search_pp_list): Decref 'attr'.
+
 2013-05-20  Tom Tromey  <tromey@redhat.com>
 
 	* python/py-value.c (valpy_get_dynamic_type): Simplify
diff --git a/gdb/python/py-prettyprint.c b/gdb/python/py-prettyprint.c
index aa9476ed06..8c45cd6a6f 100644
--- a/gdb/python/py-prettyprint.c
+++ b/gdb/python/py-prettyprint.c
@@ -69,6 +69,7 @@ search_pp_list (PyObject *list, PyObject *value)
 	  if (!attr)
 	    return NULL;
 	  cmp = PyObject_IsTrue (attr);
+	  Py_DECREF (attr);
 	  if (cmp == -1)
 	    return NULL;