diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 47f879fdfe..126deb7893 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2018-10-05  Tom de Vries  <tdevries@suse.de>
+
+	* python/py-progspace.c (pspy_solib_name): Fix type mismatch in
+	PyArg_ParseTuple call.
+
 2018-10-05  Tom de Vries  <tdevries@suse.de>
 
 	* python/py-record-btrace.c (recpy_bt_goto): Fix type mismatch in
diff --git a/gdb/python/py-progspace.c b/gdb/python/py-progspace.c
index 1e16b845e0..6395d5bb15 100644
--- a/gdb/python/py-progspace.c
+++ b/gdb/python/py-progspace.c
@@ -362,7 +362,7 @@ static PyObject *
 pspy_solib_name (PyObject *o, PyObject *args)
 {
   char *soname;
-  gdb_py_longest pc;
+  gdb_py_ulongest pc;
   pspace_object *self = (pspace_object *) o;
 
   PSPY_REQUIRE_VALID (self);