diff --git a/tools/gulp/tasks/docs.ts b/tools/gulp/tasks/docs.ts
index 987ecb3d87dc..c3b394625d80 100644
--- a/tools/gulp/tasks/docs.ts
+++ b/tools/gulp/tasks/docs.ts
@@ -74,7 +74,6 @@ const markdownOptions = {
 
 /** Generate all docs content. */
 task('docs', sequenceTask(
-  'clean',
   [
     'markdown-docs-material',
     'markdown-docs-cdk',