Make a paragraph slightly more clear (#2874)
diff --git a/docs/hazmat/backends/openssl.rst b/docs/hazmat/backends/openssl.rst
index 03ac557..f488a8b 100644
--- a/docs/hazmat/backends/openssl.rst
+++ b/docs/hazmat/backends/openssl.rst
@@ -43,7 +43,7 @@
OS random engine
----------------
-OpenSSL uses a user-space CSPRNG that is seeded from system random (
+By default OpenSSL uses a user-space CSPRNG that is seeded from system random (
``/dev/urandom`` or ``CryptGenRandom``). This CSPRNG is not reseeded
automatically when a process calls ``fork()``. This can result in situations
where two different processes can return similar or identical keys and