1 files changed, 2 insertions, 0 deletions
diff --git a/Modules/_json.c b/Modules/_json.c
index 5b42f6f..db45c28 100644
--- a/Modules/_json.c
+++ b/Modules/_json.c
@@ -246,7 +246,9 @@ ascii_escape_unicode(PyObject *pystr)
         }
     }
     output[chars++] = '"';
+#ifdef Py_DEBUG
     assert(_PyUnicode_CheckConsistency(rval, 1));
+#endif
     return rval;
 }