diff --git a/HACKING.md b/HACKING.md
index efd993d7..b04dde98 100644
--- a/HACKING.md
+++ b/HACKING.md
@@ -28,7 +28,7 @@ At its simplest, you build Augeas from git by running the following
 commands in the toplevel directory of your Augeas checkout:
 
     ./autogen.sh [--gnulib-srcdir=$GNULIB_CHECKOUT]
-    make && make install
+    make && make check && make install
 
 It is recommended though to turn on a few development features when
 building; in particular, stricter compiler warnings and some debug
@@ -54,6 +54,12 @@ to augtool verbatim
 * `./src/try valgrind`: run the commands from `build/augcmds.txt` through
   augtool under valgrind to check for memory leaks
 
+Furthermore, the test suite invoked with `make check` includes a test
+called `test-get.sh`, which ensures that reading the files in
+`tests/root/` with `augtool` does not lead to any errors. (It does not
+verify the parsed syntax tree however; you'll have to extend the
+individual lens tests under `lenses/tests/` for that.)
+
 # Platform specific notes
 
 ## Mac OSX