diff --git a/docs/installation.rst b/docs/installation.rst
index becab6b..f7a88b9 100644
--- a/docs/installation.rst
+++ b/docs/installation.rst
@@ -142,7 +142,7 @@
 .. code-block:: console
 
     $ brew install openssl
-    $ env ARCHFLAGS="-arch x86_64" LDFLAGS="-L/usr/local/opt/openssl/lib" CFLAGS="-I/usr/local/opt/openssl/include" pip install cryptography
+    $ env ARCHFLAGS="-arch x86_64" LDFLAGS="-L$(brew --prefix openssl)/lib" CFLAGS="-I$(brew --prefix openssl)/include" pip install cryptography
 
 or `MacPorts`_: