diff --git a/src/test_typing_extensions.py b/src/test_typing_extensions.py
index 6437cfe6..474c02cc 100644
--- a/src/test_typing_extensions.py
+++ b/src/test_typing_extensions.py
@@ -123,7 +123,7 @@
 TYPING_3_13_0 = sys.version_info[:3] >= (3, 13, 0)
 
 # 3.13.0.rc1 fixes a problem with @deprecated
-TYPING_3_13_0_RC = sys.version_info[:3] >= (3, 13, 0, "candidate")
+TYPING_3_13_0_RC = sys.version_info[:4] >= (3, 13, 0, "candidate")
 
 # https://github.com/python/cpython/pull/27017 was backported into some 3.9 and 3.10
 # versions, but not all