diff --git a/pkgs/os-specific/linux/kernel/hardened-config.nix b/pkgs/os-specific/linux/kernel/hardened-config.nix
index 63ed2219f48e..95510fe218e3 100644
--- a/pkgs/os-specific/linux/kernel/hardened-config.nix
+++ b/pkgs/os-specific/linux/kernel/hardened-config.nix
@@ -82,7 +82,4 @@ assert (versionAtLeast version "4.9");
   CC_STACKPROTECTOR_REGULAR = whenOlder "4.18" no;
   CC_STACKPROTECTOR_STRONG  = whenOlder "4.18" yes;
 
-  # Enable compile/run-time buffer overflow detection ala glibc's _FORTIFY_SOURCE
-  FORTIFY_SOURCE = whenAtLeast "4.13" yes;
-
 }