diff --git a/python-isort.spec b/python-isort.spec
index 0426ce1..04b79fe 100644
--- a/python-isort.spec
+++ b/python-isort.spec
@@ -137,7 +137,7 @@ donttest+=" or test_black_pyi_file"
 ORIGPATH=$PATH
 %{python_expand # install isort and required example projects into custom root
 mkdir isort-test-%{$python_bin_suffix}
-export PATH="$(pwd)/isort-test-%{$python_bin_suffix}%{_prefix}/bin:$ORIGPATH"
+export PATH="$(pwd)/isort-test-%{$python_bin_suffix}/usr/bin:$ORIGPATH"
 export PYTHONPATH="$(pwd)/isort-test-%{$python_bin_suffix}%{$python_sitelib}"
 export PYTHONDONTWRITEBYTECODE=1