diff --git a/boards/uniboard2c/designs/unb2c_test/src/vhdl/unb2c_test.vhd b/boards/uniboard2c/designs/unb2c_test/src/vhdl/unb2c_test.vhd
index 5bbefae0393816525dc605a852fdb29d5d53f58f..5694d383e6957b629b4ec8957a86664e55b0e9af 100644
--- a/boards/uniboard2c/designs/unb2c_test/src/vhdl/unb2c_test.vhd
+++ b/boards/uniboard2c/designs/unb2c_test/src/vhdl/unb2c_test.vhd
@@ -85,10 +85,6 @@ ENTITY unb2c_test IS
     BCK_RX       : IN    STD_LOGIC_VECTOR((c_unb2c_board_tr_back.bus_w * c_unb2c_board_tr_back.nof_bus)-1 downto 0) := (OTHERS=>'0');
     BCK_TX       : OUT   STD_LOGIC_VECTOR((c_unb2c_board_tr_back.bus_w * c_unb2c_board_tr_back.nof_bus)-1 downto 0);
 
-    BCK_SDA      : INOUT STD_LOGIC_VECTOR(c_unb2c_board_tr_back.i2c_w-1 downto 0);
-    BCK_SCL      : INOUT STD_LOGIC_VECTOR(c_unb2c_board_tr_back.i2c_w-1 downto 0);
-    BCK_ERR      : INOUT STD_LOGIC_VECTOR(c_unb2c_board_tr_back.i2c_w-1 downto 0);
-
     -- jesd204b syncronization signals
 --    JESD204B_REFCLK : IN    STD_LOGIC;  -- Use BCK_REF_CLK instead
     JESD204B_SYSREF : IN    STD_LOGIC := '0';
@@ -1128,9 +1124,9 @@ BEGIN
         BCK_RX(1)  => BCK_RX(c_nof_streams_back0+c_nof_streams_back1-1 downto c_nof_streams_back0),
         BCK_TX(1)  => BCK_TX(c_nof_streams_back0+c_nof_streams_back1-1 downto c_nof_streams_back0),
 
-        BCK_SDA => BCK_SDA,
-        BCK_SCL => BCK_SCL,
-        BCK_ERR => BCK_ERR
+        BCK_SDA => open,
+        BCK_SCL => open,
+        BCK_ERR => open
       );
     END GENERATE;