diff --git a/.gitignore b/.gitignore
index 9e94c00f..54ab513d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -46,3 +46,4 @@ src/fparser/_version.py
 doc/build
 doc/source/autogenerated
 doc/source/doxygen
+build
diff --git a/src/fparser/two/pattern_tools.py b/src/fparser/two/pattern_tools.py
index 3e766b7a..11c72718 100644
--- a/src/fparser/two/pattern_tools.py
+++ b/src/fparser/two/pattern_tools.py
@@ -67,7 +67,7 @@
 Tools for constructing patterns.
 
 Permission to use, modify, and distribute this software is given under the
-terms of the NumPy License. See http\://scipy.org.
+terms of the NumPy License. See http://scipy.org.
 
 NO WARRANTY IS EXPRESSED OR IMPLIED.  USE AT YOUR OWN RISK.
 Author: Pearu Peterson <pearu@cens.ioc.ee>