diff --git a/applications/lofar2/designs/lofar2_unb2b_ring/src/vhdl/qsys_lofar2_unb2b_ring_pkg.vhd b/applications/lofar2/designs/lofar2_unb2b_ring/src/vhdl/qsys_lofar2_unb2b_ring_pkg.vhd
index 349a444c0fca8b442ebebd80404b7bfa4a9c54e8..e2e541f352561637b8beddc0f5d2e4117630342a 100644
--- a/applications/lofar2/designs/lofar2_unb2b_ring/src/vhdl/qsys_lofar2_unb2b_ring_pkg.vhd
+++ b/applications/lofar2/designs/lofar2_unb2b_ring/src/vhdl/qsys_lofar2_unb2b_ring_pkg.vhd
@@ -99,7 +99,7 @@ PACKAGE qsys_lofar2_unb2b_ring_pkg IS
             reg_diag_bg_reset_export                           : out std_logic;                                        -- export
             reg_diag_bg_write_export                           : out std_logic;                                        -- export
             reg_diag_bg_writedata_export                       : out std_logic_vector(31 downto 0);                    -- export
-            reg_dp_block_validate_bsn_at_sync_address_export   : out std_logic_vector(3 downto 0);                     -- export
+            reg_dp_block_validate_bsn_at_sync_address_export   : out std_logic_vector(4 downto 0);                     -- export
             reg_dp_block_validate_bsn_at_sync_clk_export       : out std_logic;                                        -- export
             reg_dp_block_validate_bsn_at_sync_read_export      : out std_logic;                                        -- export
             reg_dp_block_validate_bsn_at_sync_readdata_export  : in  std_logic_vector(31 downto 0) := (others => 'X'); -- export
diff --git a/applications/lofar2/designs/lofar2_unb2c_ring/src/vhdl/qsys_lofar2_unb2c_ring_pkg.vhd b/applications/lofar2/designs/lofar2_unb2c_ring/src/vhdl/qsys_lofar2_unb2c_ring_pkg.vhd
index 648ac69b425df3642f11da3b90b96c88f9768122..c3b214cb9daf43e3f22048374bd72a04fe031f48 100644
--- a/applications/lofar2/designs/lofar2_unb2c_ring/src/vhdl/qsys_lofar2_unb2c_ring_pkg.vhd
+++ b/applications/lofar2/designs/lofar2_unb2c_ring/src/vhdl/qsys_lofar2_unb2c_ring_pkg.vhd
@@ -99,7 +99,7 @@ PACKAGE qsys_lofar2_unb2c_ring_pkg IS
             reg_diag_bg_reset_export                           : out std_logic;                                        -- export
             reg_diag_bg_write_export                           : out std_logic;                                        -- export
             reg_diag_bg_writedata_export                       : out std_logic_vector(31 downto 0);                    -- export
-            reg_dp_block_validate_bsn_at_sync_address_export   : out std_logic_vector(3 downto 0);                     -- export
+            reg_dp_block_validate_bsn_at_sync_address_export   : out std_logic_vector(4 downto 0);                     -- export
             reg_dp_block_validate_bsn_at_sync_clk_export       : out std_logic;                                        -- export
             reg_dp_block_validate_bsn_at_sync_read_export      : out std_logic;                                        -- export
             reg_dp_block_validate_bsn_at_sync_readdata_export  : in  std_logic_vector(31 downto 0) := (others => 'X'); -- export
diff --git a/applications/lofar2/libraries/sdp/src/vhdl/sdp_pkg.vhd b/applications/lofar2/libraries/sdp/src/vhdl/sdp_pkg.vhd
index 4dbd3fd7db8170a70d4ce3779301d426b6bb5d34..ed033aae48a8caf90dd87e09c13c102053b2ad07 100644
--- a/applications/lofar2/libraries/sdp/src/vhdl/sdp_pkg.vhd
+++ b/applications/lofar2/libraries/sdp/src/vhdl/sdp_pkg.vhd
@@ -357,7 +357,7 @@ PACKAGE sdp_pkg is
   CONSTANT c_sdp_reg_dp_xonoff_lane_addr_w                : NATURAL := ceil_log2(c_sdp_N_ring_lanes_max) + 1; 
   CONSTANT c_sdp_reg_dp_xonoff_local_addr_w               : NATURAL := ceil_log2(c_sdp_N_ring_lanes_max) + 1; 
   CONSTANT c_sdp_reg_dp_block_validate_err_addr_w         : NATURAL := ceil_log2(c_sdp_N_ring_lanes_max) + 4; 
-  CONSTANT c_sdp_reg_dp_block_validate_bsn_at_sync_addr_w : NATURAL := ceil_log2(c_sdp_N_ring_lanes_max) + 1; 
+  CONSTANT c_sdp_reg_dp_block_validate_bsn_at_sync_addr_w : NATURAL := ceil_log2(c_sdp_N_ring_lanes_max) + 2; 
   CONSTANT c_sdp_reg_ring_info_addr_w                     : NATURAL := 2; 
   CONSTANT c_sdp_reg_tr_10GbE_mac_addr_w                  : NATURAL := 13; 
   CONSTANT c_sdp_reg_tr_10GbE_eth10g_addr_w               : NATURAL := 1;