diff --git a/TESTED_ON b/TESTED_ON
index a8c0bd4..0d7f4f2 100644
--- a/TESTED_ON
+++ b/TESTED_ON
@@ -1,4 +1,4 @@
-Arch Linux 2016.02.01 (x64)
-Debian GNU/Linux v8.3 (stable) (jessie) (x64)
+Arch Linux 2016.02.01 (x86_64)
+Debian GNU/Linux v8.5 (stable) (jessie) (x86_64)
 Cygwin64 CYGWIN_NT-6.3 (x86_64)
 openSUSE 20150612 (Tumbleweed) (x86_64)
diff --git a/build.usage b/build.usage
index 464a831..44ae331 100644
--- a/build.usage
+++ b/build.usage
@@ -42,3 +42,9 @@ usage: ./build.sh [-c] [-nd] [-r ALL|level.name.build[:step]] [-h] [-t]
 
         ./build.sh -c -r ALL GITROOT_HEAD=...
         Clean $PREFIX and forcibly rebuild everything.
+
+This script has been tested on the following platforms:
+Arch Linux 2016.02.01 (x86_64)
+Debian GNU/Linux v8.5 (stable) (jessie) (x86_64)
+Cygwin64 CYGWIN_NT-6.3 (x86_64)
+openSUSE 20150612 (Tumbleweed) (x86_64)