diff --git a/src/Bison-exception-1.24.xml b/src/Bison-exception-1.24.xml
new file mode 100644
index 000000000..fccae1d7a
--- /dev/null
+++ b/src/Bison-exception-1.24.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<SPDXLicenseCollection xmlns="http://www.spdx.org/license">
+   <exception licenseId="Bison-exception-1.24"
+   name="Bison exception 1.24" listVersionAdded="3.23">
+   <crossRefs>
+      <crossRef>https://github.com/arineng/rwhoisd/blob/master/rwhoisd/mkdb/y.tab.c#L180</crossRef>
+   </crossRefs>
+   <text>
+      <p>
+         As a special exception, when this file is copied by Bison
+         into a Bison output file, you may use that output file
+         without restriction. This special exception was added by
+         the Free Software Foundation in version 1.24 of Bison.
+      </p>
+   </text>
+   </exception>
+</SPDXLicenseCollection>
diff --git a/test/simpleTestForGenerator/Bison-exception-1.24.txt b/test/simpleTestForGenerator/Bison-exception-1.24.txt
new file mode 100644
index 000000000..7f3c3009e
--- /dev/null
+++ b/test/simpleTestForGenerator/Bison-exception-1.24.txt
@@ -0,0 +1,4 @@
+As a special exception, when this file is copied by Bison into a
+Bison output file, you may use that output file without restriction.
+This special exception was added by the Free Software Foundation
+in version 1.24 of Bison.