diff --git a/core/include/ariane_pkg.sv b/core/include/ariane_pkg.sv
index b195d30cf..bef2894f6 100644
--- a/core/include/ariane_pkg.sv
+++ b/core/include/ariane_pkg.sv
@@ -306,7 +306,7 @@ package ariane_pkg;
     // ---------------
     // Enable BITMANIP
     // ---------------
-    localparam bit BITMANIP = 1'b0;
+    localparam bit BITMANIP = cva6_config_pkg::CVA6ConfigBExtEn;
 
     // Only use struct when signals have same direction
     // exception
diff --git a/core/include/cv32a60x_config_pkg.sv b/core/include/cv32a60x_config_pkg.sv
index 24122cdba..444fb7e2a 100644
--- a/core/include/cv32a60x_config_pkg.sv
+++ b/core/include/cv32a60x_config_pkg.sv
@@ -26,6 +26,7 @@ package cva6_config_pkg;
     localparam CVA6ConfigCvxifEn = 1;
     localparam CVA6ConfigCExtEn = 1;
     localparam CVA6ConfigAExtEn = 0;
+    localparam CVA6ConfigBExtEn = 0;
 
     localparam CVA6ConfigFetchUserEn = 0;
     localparam CVA6ConfigFetchUserWidth = CVA6ConfigXlen;
diff --git a/core/include/cv32a6_embedded_config_pkg.sv b/core/include/cv32a6_embedded_config_pkg.sv
index abc332388..59f314687 100644
--- a/core/include/cv32a6_embedded_config_pkg.sv
+++ b/core/include/cv32a6_embedded_config_pkg.sv
@@ -26,6 +26,7 @@ package cva6_config_pkg;
     localparam CVA6ConfigCvxifEn = 1;
     localparam CVA6ConfigCExtEn = 1;
     localparam CVA6ConfigAExtEn = 0;
+    localparam CVA6ConfigBExtEn = 1;
 
     localparam CVA6ConfigFetchUserEn = 0;
     localparam CVA6ConfigFetchUserWidth = CVA6ConfigXlen;
diff --git a/core/include/cv32a6_ima_sv32_fpga_config_pkg.sv b/core/include/cv32a6_ima_sv32_fpga_config_pkg.sv
index dee870070..025fb7b91 100644
--- a/core/include/cv32a6_ima_sv32_fpga_config_pkg.sv
+++ b/core/include/cv32a6_ima_sv32_fpga_config_pkg.sv
@@ -26,6 +26,7 @@ package cva6_config_pkg;
     localparam CVA6ConfigCvxifEn = 0;
     localparam CVA6ConfigCExtEn = 0;
     localparam CVA6ConfigAExtEn = 1;
+    localparam CVA6ConfigBExtEn = 0;
 
     localparam CVA6ConfigFetchUserEn = 0;
     localparam CVA6ConfigFetchUserWidth = CVA6ConfigXlen;
diff --git a/core/include/cv32a6_imac_sv0_config_pkg.sv b/core/include/cv32a6_imac_sv0_config_pkg.sv
index 20cdb8b5a..eb618618e 100644
--- a/core/include/cv32a6_imac_sv0_config_pkg.sv
+++ b/core/include/cv32a6_imac_sv0_config_pkg.sv
@@ -26,6 +26,7 @@ package cva6_config_pkg;
     localparam CVA6ConfigCvxifEn = 0;
     localparam CVA6ConfigCExtEn = 1;
     localparam CVA6ConfigAExtEn = 1;
+    localparam CVA6ConfigBExtEn = 0;
 
     localparam CVA6ConfigFetchUserEn = 0;
     localparam CVA6ConfigFetchUserWidth = CVA6ConfigXlen;
diff --git a/core/include/cv32a6_imac_sv32_config_pkg.sv b/core/include/cv32a6_imac_sv32_config_pkg.sv
index e5eb76f6e..4be0a5a3a 100644
--- a/core/include/cv32a6_imac_sv32_config_pkg.sv
+++ b/core/include/cv32a6_imac_sv32_config_pkg.sv
@@ -26,6 +26,7 @@ package cva6_config_pkg;
     localparam CVA6ConfigCvxifEn = 0;
     localparam CVA6ConfigCExtEn = 1;
     localparam CVA6ConfigAExtEn = 1;
+    localparam CVA6ConfigBExtEn = 0;
 
     localparam CVA6ConfigFetchUserEn = 0;
     localparam CVA6ConfigFetchUserWidth = CVA6ConfigXlen;
diff --git a/core/include/cv32a6_imafc_sv32_config_pkg.sv b/core/include/cv32a6_imafc_sv32_config_pkg.sv
index 124d9088a..78cae5ebd 100644
--- a/core/include/cv32a6_imafc_sv32_config_pkg.sv
+++ b/core/include/cv32a6_imafc_sv32_config_pkg.sv
@@ -26,6 +26,7 @@ package cva6_config_pkg;
     localparam CVA6ConfigCvxifEn = 0;
     localparam CVA6ConfigCExtEn = 1;
     localparam CVA6ConfigAExtEn = 1;
+    localparam CVA6ConfigBExtEn = 0;
 
     localparam CVA6ConfigFetchUserEn = 0;
     localparam CVA6ConfigFetchUserWidth = CVA6ConfigXlen;
diff --git a/core/include/cv64a6_imafdc_sv39_config_pkg.sv b/core/include/cv64a6_imafdc_sv39_config_pkg.sv
index 99b814337..ea8332a1f 100644
--- a/core/include/cv64a6_imafdc_sv39_config_pkg.sv
+++ b/core/include/cv64a6_imafdc_sv39_config_pkg.sv
@@ -26,6 +26,7 @@ package cva6_config_pkg;
     localparam CVA6ConfigCvxifEn = 1;
     localparam CVA6ConfigCExtEn = 1;
     localparam CVA6ConfigAExtEn = 1;
+    localparam CVA6ConfigBExtEn = 0;
 
     localparam CVA6ConfigFetchUserEn = 0;
     localparam CVA6ConfigFetchUserWidth = CVA6ConfigXlen;
diff --git a/core/include/cv64a6_imafdc_sv39_openpiton_config_pkg.sv b/core/include/cv64a6_imafdc_sv39_openpiton_config_pkg.sv
index f07a4fa72..f9b008392 100644
--- a/core/include/cv64a6_imafdc_sv39_openpiton_config_pkg.sv
+++ b/core/include/cv64a6_imafdc_sv39_openpiton_config_pkg.sv
@@ -26,6 +26,7 @@ package cva6_config_pkg;
     localparam CVA6ConfigCvxifEn = 0;
     localparam CVA6ConfigCExtEn = 1;
     localparam CVA6ConfigAExtEn = 1;
+    localparam CVA6ConfigBExtEn = 0;
 
     localparam CVA6ConfigFetchUserEn = 0;
     localparam CVA6ConfigFetchUserWidth = CVA6ConfigXlen;