1 files changed, 5 insertions, 0 deletions
diff --git a/README b/README
index 7507b12..5ef6209 100644
--- a/README
+++ b/README
@@ -9,6 +9,11 @@ To test your implementations run
 
 	env EPATH=<path> ./test-all [<utils>...]
 
+If you have exec-as installed, and what to test
+multi-call binary, run
+
+	env EXECBOX=<binary> ./test-all [<utils>...]
+
 you also copy all files into <path> and just run
 
 	./test [<utils>...]