diff --git a/README.md b/README.md
index e3b391f1..107a53e5 100644
--- a/README.md
+++ b/README.md
@@ -40,7 +40,7 @@ In addition:
 ## Basic example
 
 ```cpp
-include <algorithm>
+#include <algorithm>
 #include <iostream>
 #include <iterator>
 
diff --git a/doc/index.md b/doc/index.md
index 8ce72087..8cf36980 100644
--- a/doc/index.md
+++ b/doc/index.md
@@ -38,7 +38,7 @@ The concepts of this library are defined are [here](md_doc_concepts.html).
  ## Basic example
  
  ```cpp
- include <algorithm>
+ #include <algorithm>
  #include <iostream>
  #include <iterator>