diff --git a/sims/verilator/Makefile b/sims/verilator/Makefile
index 10b28cb7..295729b7 100644
--- a/sims/verilator/Makefile
+++ b/sims/verilator/Makefile
@@ -85,7 +85,7 @@ VERILATOR_OPT_FLAGS := \
 	--x-assign fast \
 	--x-initial fast \
 	--output-split 10000 \
-	--output-split-cfuncs 10000
+	--output-split-cfuncs 100
 
 # default flags added for external IP (ariane/NVDLA)
 VERILOG_IP_VERILATOR_FLAGS := \