diff --git a/ci-build.sh b/ci-build.sh
index 61195aa..55f5a25 100755
--- a/ci-build.sh
+++ b/ci-build.sh
@@ -20,6 +20,7 @@ test -f ${BUILD}/test-install-bin/i3pystatus
 PYTHONPATH=${BUILD}/test-install py.test --junitxml ${BUILD}/testlog.xml tests
 
 # Check that the docs build w/o warnings (-W flag)
+rm -r ${BUILD}/docs/
 sphinx-build -b html -W docs ${BUILD}/docs/