diff --git a/top1m/Makefile b/top1m/Makefile
new file mode 100644
index 0000000..469d11c
--- /dev/null
+++ b/top1m/Makefile
@@ -0,0 +1,2 @@
+build: parse_CAs.c
+	gcc -o parse_CAs parse_CAs.c -lssl -lcrypto -ljson-c --std=gnu99