diff --git a/.gitignore b/.gitignore
index 4fb1670..ffad158 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 todd
+*.o
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..a9346e3
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,14 @@
+.DEFAULT_GOAL := purge 
+
+todo.o:
+	cc -c todo.c -o todo.o
+
+main.o:
+	cc -c main.c -o main.o
+
+purge:
+	rm -f *.o
+	make all
+
+all: todo.o main.o
+	cc todo.o main.o -o todd
diff --git a/build.sh b/build.sh
deleted file mode 100644
index a34c540..0000000
--- a/build.sh
+++ /dev/null
@@ -1 +0,0 @@
-cc todo.c main.c -o todd