diff --git a/blah.txt b/blah.txt
new file mode 100644
index 0000000..ba8c4c4
--- /dev/null
+++ b/blah.txt
@@ -0,0 +1,2 @@
+I3
+.
\ No newline at end of file
diff --git a/blah2.txt b/blah2.txt
new file mode 100644
index 0000000..1cc9408
--- /dev/null
+++ b/blah2.txt
@@ -0,0 +1,2 @@
+I2
+.
\ No newline at end of file
diff --git a/counter.py b/counter.py
index 1e2fb56..bd4511d 100644
--- a/counter.py
+++ b/counter.py
@@ -29,7 +29,16 @@ def update_counter(file_name, reset=False):
 	>>> update_counter('blah2.txt')
 	2
 	"""
-	pass
+	if not exists(file_name) or reset:
+		counter = 1
+		f = open(file_name, 'w')
+		dump(counter, f)
+	else:
+		f = open(file_name, 'r+')
+		counter = load(f) + 1
+		f.seek(0,0)
+		dump(counter, f)
+	return counter
 
 if __name__ == '__main__':
 	if len(sys.argv) < 2: