1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index eb4248e..bd430e0 100644
--- a/Makefile
+++ b/Makefile
@@ -108,7 +108,7 @@ verilator.%: %.v %.tb.v
 # need to specify RM for some reason
 # verilators makefiles doesn't specify the variable
 verilator.%/dump.vvp: verilator.%
-	$(MAKE) -C verilator.$(*) -f V$(*).mk RM=rm
+	$(MAKE) -j4 -C verilator.$(*) -f V$(*).mk RM=rm
 	cd verilator.$(*) && ./V$(*)
 
 ## inter-file dependencies