diff --git a/docs/userguide/package_discovery.rst b/docs/userguide/package_discovery.rst
index 551e02e685..61da2d662c 100644
--- a/docs/userguide/package_discovery.rst
+++ b/docs/userguide/package_discovery.rst
@@ -38,7 +38,7 @@ included manually in the following manner:
             packages=['mypkg1', 'mypkg2']
         )
 
-This can get tiresome reallly quickly. To speed things up, we introduce two
+This can get tiresome really quickly. To speed things up, we introduce two
 functions provided by setuptools:
 
 .. tab:: setup.cfg