diff --git a/python-sure.spec b/python-sure.spec
index 31320e1..a4f8ab5 100644
--- a/python-sure.spec
+++ b/python-sure.spec
@@ -81,7 +81,7 @@ sed -r -i \
 
 %build
 %pyproject_wheel
-%make_build -C docs/ html SPHINXOPTS='%{?_smp_mflags}'
+env PYTHONPATH="${PWD}" %make_build -C docs/ html SPHINXOPTS='%{?_smp_mflags}'
 
 
 %install