diff --git a/README.md b/README.md
index b8b1a84..76cbefe 100644
--- a/README.md
+++ b/README.md
@@ -1407,7 +1407,7 @@ timeit('"-".join(str(a) for a in range(100))',
 ```
 
 ### Call Graph
-#### Generates a PNG image of call graph with highlighted bottlenecks.
+#### Generates a PNG image of call graph with highlighted bottlenecks:
 ```python
 # $ pip3 install pycallgraph
 from pycallgraph import output, PyCallGraph