diff --git a/dv/uvm/core_ibex/scripts/ibex_sim.mk b/dv/uvm/core_ibex/scripts/ibex_sim.mk
index 2687569e..3bbb6ed8 100644
--- a/dv/uvm/core_ibex/scripts/ibex_sim.mk
+++ b/dv/uvm/core_ibex/scripts/ibex_sim.mk
@@ -46,7 +46,7 @@ $(METADATA-DIR)/tb.compile.stamp: \
 	@touch $@
 
 ###############################################################################
-# Run ibex RTL simulation with randomly-generated program and uvm stimulus
+# Run ibex RTL simulation with random or directed test and uvm stimulus
 
 $(rtl-sim-logs): $(TESTS-DIR)/%/$(rtl-sim-logfile): \
   $(TB-COMPILE-STAMP) $(TESTS-DIR)/%/test.bin scripts/run_rtl.py