diff --git a/tests/test_basic/Makefile b/tests/test_basic/Makefile
index f9ebf04..69f9f15 100644
--- a/tests/test_basic/Makefile
+++ b/tests/test_basic/Makefile
@@ -45,7 +45,7 @@ LDFLAGS = -melf32lriscv_ilp32
 
 # Hardware compilation
 %.out: %.sv $(SOURCE_V)
-	iverilog -g2012 -o $@ $^
+	iverilog -g2012 -o $@ $^ -Y .sv -I ../../lib
 
 # Run test
 %.vcd %.log: %.out %.hex