1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index f1523c7..c0fab78 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@ SUBDIRS := $(wildcard model*/. example*/.)
 all: $(SUBDIRS)
 
 $(SUBDIRS):
-	$(MAKE) -C $@
+	$(MAKE) -j -C $@
 
 pngs: $(SUBDIRS)
 	for dir in $(SUBDIRS); do \