diff --git a/README.md b/README.md
index aec2b98..d3188b5 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ pam_hbac was tested on the following operating systems and releases:
       distributions. Ubuntu is used as a CI platform, but no functional
       testing was done there except integration tests.
   * FreeBSD - tested with FreeBSD 10.2
-  * Solaris - tested with Solaris 11 and Omnios
+  * Solaris - tested with Solaris 11 and Omnios. Some users run pam_hbac on Solaris 10 as well.
 
 Building from source
 ====================