diff --git a/Documentation/digsig.txt b/Documentation/security/digsig.rst
similarity index 100%
rename from Documentation/digsig.txt
rename to Documentation/security/digsig.rst
diff --git a/Documentation/security/index.rst b/Documentation/security/index.rst
index fc503dd689a7..8129405eb2cc 100644
--- a/Documentation/security/index.rst
+++ b/Documentation/security/index.rst
@@ -15,3 +15,4 @@ Security Documentation
    self-protection
    siphash
    tpm/index
+   digsig