diff --git a/setup.py b/setup.py
index 899e9375c0..d3b967a4b6 100644
--- a/setup.py
+++ b/setup.py
@@ -106,7 +106,8 @@ install_requires = [
     "dns",
     # Python defaults (cx_Freeze skip them by default)
     "dbm",
-    "sqlite3"
+    "sqlite3",
+    "dataclasses"
 ]
 
 includes = []