diff --git a/flow/simulators/ivlog_sim.sh b/flow/simulators/ivlog_sim.sh
index ec8c7d6a8e1870ee54eb4dfea86c9b723b14c06b..a956e4dab9b839d04c7ae192c347fb524316036d 100755
--- a/flow/simulators/ivlog_sim.sh
+++ b/flow/simulators/ivlog_sim.sh
@@ -12,5 +12,5 @@
 #!/usr/bin/env bash
 
 mkdir -p $SOC_TOP/simulate/sim/ 
-iverilog -I $SOC_TOP/hdl/verif/ -I $SOC_TOP/hdl/src/ -I $SHA_2_ACC_DIR/hdl/src/ -g2012 -o $SOC_TOP/simulate/sim/$1.vvp $SOC_TOP/hdl/verif/tb_$1.sv
+iverilog -I $SOC_TOP/hdl/verif/ -I $SOC_TOP/hdl/verif/submodules -I $SOC_TOP/hdl/src/ -I $SHA_2_ACC_DIR/hdl/src/ -g2012 -o $SOC_TOP/simulate/sim/$1.vvp $SOC_TOP/hdl/verif/tb_$1.sv
 cd $SOC_TOP/simulate/sim/ && vvp $1.vvp $2
\ No newline at end of file
diff --git a/hdl/verif/cmsdk_ahb_default_slave.v b/hdl/verif/submodules/cmsdk_ahb_default_slave.v
similarity index 100%
rename from hdl/verif/cmsdk_ahb_default_slave.v
rename to hdl/verif/submodules/cmsdk_ahb_default_slave.v
diff --git a/hdl/verif/cmsdk_ahb_fileread_funnel.v b/hdl/verif/submodules/cmsdk_ahb_fileread_funnel.v
similarity index 100%
rename from hdl/verif/cmsdk_ahb_fileread_funnel.v
rename to hdl/verif/submodules/cmsdk_ahb_fileread_funnel.v
diff --git a/hdl/verif/cmsdk_ahb_fileread_master32.v b/hdl/verif/submodules/cmsdk_ahb_fileread_master32.v
similarity index 100%
rename from hdl/verif/cmsdk_ahb_fileread_master32.v
rename to hdl/verif/submodules/cmsdk_ahb_fileread_master32.v
diff --git a/hdl/verif/cmsdk_ahb_filereadcore.v b/hdl/verif/submodules/cmsdk_ahb_filereadcore.v
similarity index 100%
rename from hdl/verif/cmsdk_ahb_filereadcore.v
rename to hdl/verif/submodules/cmsdk_ahb_filereadcore.v
diff --git a/hdl/verif/cmsdk_ahb_ram_beh.v b/hdl/verif/submodules/cmsdk_ahb_ram_beh.v
similarity index 100%
rename from hdl/verif/cmsdk_ahb_ram_beh.v
rename to hdl/verif/submodules/cmsdk_ahb_ram_beh.v
diff --git a/hdl/verif/cmsdk_ahb_slave_mux.v b/hdl/verif/submodules/cmsdk_ahb_slave_mux.v
similarity index 100%
rename from hdl/verif/cmsdk_ahb_slave_mux.v
rename to hdl/verif/submodules/cmsdk_ahb_slave_mux.v