diff --git a/python-pygit2.spec b/python-pygit2.spec
index 964d01b..8efd42d 100644
--- a/python-pygit2.spec
+++ b/python-pygit2.spec
@@ -44,7 +44,7 @@ Python 3 version.
 %package        doc
 Summary:        Documentation for %{name}
 BuildArch:      noarch
-BuildRequires:  %{_bindir}/sphinx-build
+BuildRequires:  /usr/bin/sphinx-build
 
 %description    doc
 Documentation for %{name}.