diff --git a/docs/scenarios/speed.rst b/docs/scenarios/speed.rst
index e20c563..87a1f66 100644
--- a/docs/scenarios/speed.rst
+++ b/docs/scenarios/speed.rst
@@ -61,7 +61,7 @@ The GIL
 `Special care`_ must be taken when writing C extensions to make sure you r
 egister your threads with the interpreter.
 
-C Extentions
+C Extensions
 ::::::::::::