diff --git a/fpga/Makefile b/fpga/Makefile
index 037b2fb9a6..79bdb338b8 100644
--- a/fpga/Makefile
+++ b/fpga/Makefile
@@ -90,11 +90,14 @@ fpga_common_script_dir := $(fpga_dir)/common/tcl
 #########################################################################################
 # setup misc. sim files
 #########################################################################################
+SIM_FILE_REQS += \
+	$(ROCKETCHIP_RSRCS_DIR)/vsrc/EICG_wrapper.v
+
 # copy files but ignore *.h files in *.f (match vcs)
-$(sim_files): $(SIM_FILE_REQS) | $(GEN_COLLATERAL_DIR)
-	cp -f $^ $(GEN_COLLATERAL_DIR)
+$(sim_files): $(SIM_FILE_REQS) $(ALL_MODS_FILELIST) | $(GEN_COLLATERAL_DIR)
+	cp -f $(SIM_FILE_REQS) $(GEN_COLLATERAL_DIR)
 	$(foreach file,\
-		$^,\
+		$(SIM_FILE_REQS),\
 		$(if $(filter %.h,$(file)),\
 			,\
 			echo "$(addprefix $(GEN_COLLATERAL_DIR)/, $(notdir $(file)))" >> $@;))
diff --git a/sims/vcs/Makefile b/sims/vcs/Makefile
index b26df84331..b6f11a800b 100644
--- a/sims/vcs/Makefile
+++ b/sims/vcs/Makefile
@@ -38,10 +38,10 @@ SIM_FILE_REQS += \
 	$(ROCKETCHIP_RSRCS_DIR)/vsrc/TestDriver.v
 
 # copy files but ignore *.h files in *.f since vcs has +incdir+$(build_dir)
-$(sim_files): $(SIM_FILE_REQS) | $(GEN_COLLATERAL_DIR)
-	cp -f $^ $(GEN_COLLATERAL_DIR)
+$(sim_files): $(SIM_FILE_REQS) $(ALL_MODS_FILELIST) | $(GEN_COLLATERAL_DIR)
+	cp -f $(SIM_FILE_REQS) $(GEN_COLLATERAL_DIR)
 	$(foreach file,\
-		$^,\
+		$(SIM_FILE_REQS),\
 		$(if $(filter %.h,$(file)),\
 			,\
 			echo "$(addprefix $(GEN_COLLATERAL_DIR)/, $(notdir $(file)))" >> $@;))
diff --git a/sims/verilator/Makefile b/sims/verilator/Makefile
index fd171b4cb3..d48da28e8c 100644
--- a/sims/verilator/Makefile
+++ b/sims/verilator/Makefile
@@ -66,10 +66,10 @@ SIM_FILE_REQS += \
 	$(ROCKETCHIP_RSRCS_DIR)/csrc/remote_bitbang.cc
 
 # copy files and add -FI for *.h files in *.f
-$(sim_files): $(SIM_FILE_REQS) | $(GEN_COLLATERAL_DIR)
-	cp -f $^ $(GEN_COLLATERAL_DIR)
+$(sim_files): $(SIM_FILE_REQS) $(ALL_MODS_FILELIST) | $(GEN_COLLATERAL_DIR)
+	cp -f $(SIM_FILE_REQS) $(GEN_COLLATERAL_DIR)
 	$(foreach file,\
-		$^,\
+		$(SIM_FILE_REQS),\
 		$(if $(filter %.h,$(file)),\
 			echo "-FI $(addprefix $(GEN_COLLATERAL_DIR)/, $(notdir $(file)))" >> $@;,\
 			echo "$(addprefix $(GEN_COLLATERAL_DIR)/, $(notdir $(file)))" >> $@;))
diff --git a/vlsi/Makefile b/vlsi/Makefile
index a1f850a1ee..ab8438d50c 100644
--- a/vlsi/Makefile
+++ b/vlsi/Makefile
@@ -134,10 +134,10 @@ SIM_FILE_REQS += \
 	$(ROCKETCHIP_RSRCS_DIR)/vsrc/TestDriver.v
 
 # copy files but ignore *.h files in *.f since vcs has +incdir+$(build_dir)
-$(sim_files): $(SIM_FILE_REQS) | $(build_dir)
-	cp -f $^ $(build_dir)
+$(sim_files): $(SIM_FILE_REQS) $(ALL_MODS_FILELIST) | $(build_dir)
+	cp -f $(SIM_FILE_REQS) $(build_dir)
 	$(foreach file,\
-		$^,\
+		$(SIM_FILE_REQS),\
 		$(if $(filter %.h,$(file)),\
 			,\
 			echo "$(addprefix $(build_dir)/, $(notdir $(file)))" >> $@;))