diff --git a/src/tools/Makefile b/src/tools/Makefile
index 93be1b664..9a224440a 100644
--- a/src/tools/Makefile
+++ b/src/tools/Makefile
@@ -1,3 +1,7 @@
+all: atoi36 namegen
+
+atoi36: atoi36.c
+	$(CC) -I.. -I../common/kernel -I../common/util $(CFLAGS) $(LDFLAGS) -o atoi36 atoi36.c
 
 namegen:
 	$(CC) -I.. -I../common/kernel -I../common/util $(CFLAGS) $(LDFLAGS) -o namegen namegen.c