diff --git a/docs/hazmat/primitives/interfaces.rst b/docs/hazmat/primitives/interfaces.rst
index 0c193bd..4739680 100644
--- a/docs/hazmat/primitives/interfaces.rst
+++ b/docs/hazmat/primitives/interfaces.rst
@@ -108,7 +108,7 @@
 
 .. class:: RSAPrivateKey
 
-.. versionadded:: 0.2
+    .. versionadded:: 0.2
 
     An `RSA`_ private key.
 
@@ -169,7 +169,7 @@
 
 .. class:: RSAPublicKey
 
-.. versionadded:: 0.2
+    .. versionadded:: 0.2
 
     An `RSA`_ public key.