diff --git a/README.md b/README.md
index 8771374..fcc1d60 100644
--- a/README.md
+++ b/README.md
@@ -1397,6 +1397,7 @@ timeit('"-".join(str(a) for a in range(100))',
        number=10000, globals=globals())
 ```
 
+### PyCallGraph
 #### Generates a PNG image of call graph and highlights the bottlenecks:
 ```python
 # $ pip3 install pycallgraph