Update Readme.md
diff --git a/README.md b/README.md
index b03d222..66706eb 100644
--- a/README.md
+++ b/README.md
@@ -139,7 +139,7 @@
 
 ```c++
 BENCHMARK(BM_StringCompare)
-    ->RangeMultiplier(2)->Range(1<<10, 1<<18)->Complexity(benchmark::oAuto);
+    ->RangeMultiplier(2)->Range(1<<10, 1<<18)->Complexity();
 ```
 
 ### Templated benchmarks