diff --git a/data_navigator.go b/data_navigator.go
index 55106f2b..fbaf39ca 100644
--- a/data_navigator.go
+++ b/data_navigator.go
@@ -58,7 +58,7 @@ func recurse(value interface{}, head string, tail []string) interface{} {
 }
 
 func readArray(array []interface{}, head int64, tail []string) interface{} {
-	if head > int64(len(array)) {
+	if head >= int64(len(array)) {
 		return nil
 	}
 
diff --git a/data_navigator_test.go b/data_navigator_test.go
index c77ea397..eda5f45f 100644
--- a/data_navigator_test.go
+++ b/data_navigator_test.go
@@ -83,6 +83,17 @@ b:
 	assertResult(t, nil, readMap(data, "b", []string{"d", "3"}))
 }
 
+func TestReadMap_with_array_out_of_bounds_by_1(t *testing.T) {
+	var data = parseData(`
+---
+b:
+  d:
+    - 3
+    - 4
+`)
+	assertResult(t, nil, readMap(data, "b", []string{"d", "2"}))
+}
+
 func TestReadMap_with_array_splat(t *testing.T) {
 	var data = parseData(`
 e: