1 files changed, 4 insertions, 1 deletions
diff --git a/HACKING b/HACKING
index dbb347e6f..8755fd63f 100644
--- a/HACKING
+++ b/HACKING
@@ -18,8 +18,11 @@ the code, you need the following tools:
     - lex/flex
     - yacc/bison
     - gperf
+
+    Optionally:
     - check
-    - optionally Doxygen
+    - lcov/genhtml
+    - Doxygen
 
 To check out the master branch, use: