diff --git a/src/doc8/checks.py b/src/doc8/checks.py
index 2b6870f..e25dc73 100644
--- a/src/doc8/checks.py
+++ b/src/doc8/checks.py
@@ -118,6 +118,10 @@ class CheckValidity(ContentCheck):
             r'^Error in \"code-block\" directive\:\nunknown option: "substitutions".',
             re.MULTILINE,
         ),
+        re.compile(
+            r'^Error in \"include\" directive\:\nunknown option: "path-substitutions".',
+            re.MULTILINE,
+        ),
         re.compile(
             r'^PEP number must be a number from 0 to 9999; "\d{1,4}#[^"]*" is invalid.',
         ),