diff --git a/pkgs/os-specific/linux/kernel/common-config.nix b/pkgs/os-specific/linux/kernel/common-config.nix
index ebb569689b29..ec2b2f387950 100644
--- a/pkgs/os-specific/linux/kernel/common-config.nix
+++ b/pkgs/os-specific/linux/kernel/common-config.nix
@@ -639,7 +639,7 @@ with stdenv.lib;
   
   # needed for iwd WPS support (wpa_supplicant replacement)
   ${optionalString (versionAtLeast version "4.7") ''
-    CONFIG_KEY_DH_OPERATIONS y
+    KEY_DH_OPERATIONS y
   ''}
 
   # Disable the firmware helper fallback, udev doesn't implement it any more