diff --git a/INSTALL.md b/INSTALL.md
index 61849b15c..73d19368d 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -220,8 +220,9 @@ Defaults are listed in brackets after the description.
     --disable-hardening
         Disable the use of compiler/linker exploit mitigation options
         which are enabled by default.  This includes compiling with
-        _FORTIFY_SOURCE defined to 2, building with -fstack-protector
-        and linking with -zrelro, where supported.
+        _FORTIFY_SOURCE defined to 2, building with -fstack-protector,
+        -fstack-clash-protection, -fcf-protection and linking with
+        -zrelro, -znow, and -znoexecstack where supported.
 
     --disable-ssp
         Disable use of the -fstack-protector compiler option.