diff --git a/README.md b/README.md
index 42c99cb..430421d 100644
--- a/README.md
+++ b/README.md
@@ -41,6 +41,11 @@ let data : Vec<i32> = var.values().unwrap();
 for x in 0..(6*12) {
     assert_eq!(data[x], x as i32);
 }
+
+// You can also fetch a single value from a datasets,
+// using a array slice to index it
+let first_val: i32 = var.value_at(&[5, 3]).unwrap();
+
 ```
 
 ## Write Example
diff --git a/tests/lib.rs b/tests/lib.rs
index 4a52a30..f32fab0 100644
--- a/tests/lib.rs
+++ b/tests/lib.rs
@@ -76,7 +76,7 @@ fn test_index_fetch() {
 
     let var = file.root.variables.get("data").unwrap();
     let first_val: i32 = var.value_at(&[0usize, 0usize]).unwrap();
-    let other_val: i32 = var.value_at(&[5usize, 3usize]).unwrap();
+    let other_val: i32 = var.value_at(&[5, 3]).unwrap();
 
     assert_eq!(first_val, 0 as i32);
     assert_eq!(other_val, 63 as i32 );