diff --git a/README.md b/README.md
index 4a59b99..fb6d5e5 100644
--- a/README.md
+++ b/README.md
@@ -133,7 +133,7 @@ blockparser
         Build it:
 
             cd blockparser
-            make
+            ./make                        (or use 'perl make' if this does not work)
 
     It crashes
     ----------