diff --git a/docs/_security.html b/docs/_security.html
index a0db9ce87..81b762344 100644
--- a/docs/_security.html
+++ b/docs/_security.html
@@ -56,10 +56,11 @@
 SUBTITLE(C mistakes)
 
 <p>
- The flaws listed as "C mistakes" are vulnerabilities that we deem
+ Flaws listed as "C mistakes" are vulnerabilities that we deem
  are <i>likely</i> to not have happened should we have used a memory-safe
  language rather than C. The C mistakes are divided into the following areas:
- OVERFLOW, OVERREAD, DOUBLE_FREE, USE_AFTER_FREE, NULL_MISTAKE and UNINIT.
+ OVERFLOW, OVERREAD, DOUBLE_FREE, USE_AFTER_FREE, NULL_MISTAKE, UNINIT and
+ BAD_FREE.
 
 SUBTITLE(Retracted security vulnerabilities)
 <p>