diff --git a/Lib/python/python.swg b/Lib/python/python.swg
index 273f273ab..3634dc349 100644
--- a/Lib/python/python.swg
+++ b/Lib/python/python.swg
@@ -194,10 +194,10 @@ SWIG_ConvertPtr(PyObject *obj, void **ptr, swig_type_info *ty, int flags) {
   if (*c != '_') {
     *ptr = (void *) 0;
     if (strcmp(c,"NULL") == 0) {
-      if (newref) Py_DECREF(obj);
+      if (newref) { Py_DECREF(obj); }
       return 0;
     } else {
-      if (newref) Py_DECREF(obj);
+      if (newref) { Py_DECREF(obj); }
       goto type_error;
     }
   }
@@ -213,7 +213,7 @@ SWIG_ConvertPtr(PyObject *obj, void **ptr, swig_type_info *ty, int flags) {
     c++;
   }
   *ptr = (void *) p;
-  if (newref) Py_DECREF(obj);
+  if (newref) { Py_DECREF(obj); }
 #endif
 
 #ifdef SWIG_COBJECT_TYPES