diff --git a/doc/dev/dev.md b/doc/dev/dev.md
index 2624128398..2cd10f4dff 100644
--- a/doc/dev/dev.md
+++ b/doc/dev/dev.md
@@ -245,7 +245,7 @@ whatever output the unit test emits, whereas in the other modes, output is
 redirected:
 
         $ cd lib/isc/tests
-        $ hash_test isc_sha512
+        $ ./hash_test isc_sha512
 
 #### Writing unit tests