diff --git a/core/include/cv64a6_imafdc_sv39_hpdcache_config_pkg.sv b/core/include/cv64a6_imafdc_sv39_hpdcache_config_pkg.sv
index 24d50ba0c5..8be842fa27 100644
--- a/core/include/cv64a6_imafdc_sv39_hpdcache_config_pkg.sv
+++ b/core/include/cv64a6_imafdc_sv39_hpdcache_config_pkg.sv
@@ -98,7 +98,7 @@ package cva6_config_pkg;
       XF8: bit'(CVA6ConfigF8En),
       RVA: bit'(CVA6ConfigAExtEn),
       RVB: bit'(CVA6ConfigBExtEn),
-      ZKN: bit'(0),
+      ZKN: bit'(1),
       RVV: bit'(CVA6ConfigVExtEn),
       RVC: bit'(CVA6ConfigCExtEn),
       RVH: bit'(CVA6ConfigHExtEn),