diff --git a/doc/README.polkit b/doc/README.polkit
index dbf7c565..099dcdac 100644
--- a/doc/README.polkit
+++ b/doc/README.polkit
@@ -1,5 +1,10 @@
-When pcsc-lite is compiled using the --enable-polkit option then
-polkit will be used to control access to the pcsc-lite daemon.
+By default pcsc-lite will use polkit to control access to the pcsc-lite
+daemon.
+
+For now, only GNU/Linux and FreeBSD are supported. Patches are welcome
+for other platforms.
+Configure pcsc-lite with -Dpolkit=false if polkit is not available for
+your platform.
 
 That allows more fine grained access control to smart cards that
 is tied to the system processes rather than solely depending on
diff --git a/src/auth.c b/src/auth.c
index 49f7ce72..a09a6e0a 100644
--- a/src/auth.c
+++ b/src/auth.c
@@ -182,6 +182,8 @@ unsigned IsClientAuthorized(int socket, const char* action, const char* reader)
 
 #else
 
+/* Do not enable polkit if it not yet supported on your system.
+ * Patches are welcome. */
 #error polkit is enabled, but no socket cred implementation for this platform
 
 #endif