diff --git a/fpga/rtl/top.sv b/fpga/rtl/top.sv
index 1b72c54..f83edcc 100755
--- a/fpga/rtl/top.sv
+++ b/fpga/rtl/top.sv
@@ -34,7 +34,7 @@ module zx_ula(
 
     input sd_cd,
     input sd_miso_tape_in,
-    output sd_mosi,
+    output sd_mosi_tape_out,
     output reg sd_sck,
     output reg sd_cs
 );
@@ -409,7 +409,7 @@ divmmc divmmc0(
     .ramwr_mask(div_ramwr_mask),
     .cpuwait(div_wait)
 );
-assign sd_mosi = (~sd_cd)? sd_mosi0 : tape_out;
+assign sd_mosi_tape_out = (divmmc_en == DIVMMC_OFF)? tape_out : sd_mosi0;
 
 
 /* ULAPLUS */
diff --git a/fpga/syn/zx_ula.qsf b/fpga/syn/zx_ula.qsf
index f54d91b..eeeb76f 100755
--- a/fpga/syn/zx_ula.qsf
+++ b/fpga/syn/zx_ula.qsf
@@ -112,7 +112,7 @@ set_location_assignment PIN_38 -to sd_cd
 set_location_assignment PIN_39 -to sd_cs
 set_location_assignment PIN_40 -to sd_miso_tape_in
 set_location_assignment PIN_41 -to sd_sck
-set_location_assignment PIN_42 -to sd_mosi
+set_location_assignment PIN_42 -to sd_mosi_tape_out
 set_location_assignment PIN_47 -to vd[2]
 set_location_assignment PIN_48 -to vd[0]
 set_location_assignment PIN_49 -to vd[7]
diff --git a/fpga/tb/testbench_zx_ula.v b/fpga/tb/testbench_zx_ula.v
index 747adca..6b2ba6f 100644
--- a/fpga/tb/testbench_zx_ula.v
+++ b/fpga/tb/testbench_zx_ula.v
@@ -90,7 +90,7 @@ zx_ula zx_ula1(
     .sd_cd(1'b1),
     .sd_cs(),
     .sd_sck(),
-    .sd_mosi(sd_mosi_miso),
+    .sd_mosi_tape_out(sd_mosi_miso),
     .sd_miso_tape_in(sd_mosi_miso),
     .ps2_clk(),
     .ps2_dat(),