diff --git a/META-INF/MANIFEST.MF b/META-INF/MANIFEST.MF
new file mode 100644
index 0000000..3e22e7e
--- /dev/null
+++ b/META-INF/MANIFEST.MF
@@ -0,0 +1 @@
+Main-Class: Main
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..61d7b5d
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,4 @@
+default:
+	javac -d . src/*.java
+	jar cvmf META-INF/MANIFEST.MF MissingBlobs.jar *.class
+	rm *.class
diff --git a/README.md b/README.md
index d11132d..759462d 100644
--- a/README.md
+++ b/README.md
@@ -45,10 +45,9 @@ check whether any of these dependencies are not present.
 - java compiler
 
 ### Building
-In the source file directory, execute:
+In the root directory of the repo, execute:
 ```
-$ javac *.java
-$ jar -cvfe MissingBlobs.jar MissingBlobs *.class
+$ make
 ```
 
 A runnable `MissingBlobs.jar` will be produced.