diff --git a/django/db/backends/mysql/base.py b/django/db/backends/mysql/base.py
index 93a1f32344..c39b9ffca8 100644
--- a/django/db/backends/mysql/base.py
+++ b/django/db/backends/mysql/base.py
@@ -181,7 +181,7 @@ def get_pk_default_value():
     return "DEFAULT"
 
 def get_max_name_length():
-    return None
+    return 64
 
 OPERATOR_MAPPING = {
     'exact': '= %s',