diff --git a/packages/techdocs-common/src/stages/publish/awsS3.ts b/packages/techdocs-common/src/stages/publish/awsS3.ts
index 5606ff1fd4..f0616e4cd3 100644
--- a/packages/techdocs-common/src/stages/publish/awsS3.ts
+++ b/packages/techdocs-common/src/stages/publish/awsS3.ts
@@ -306,7 +306,7 @@ export class AwsS3Publish implements PublisherBase {
           ? entityTriplet
           : lowerCaseEntityTriplet(entityTriplet);
 
-        const entityRootDir = path.join(this.bucketRootPath, entityDir);
+        const entityRootDir = path.posix.join(this.bucketRootPath, entityDir);
 
         const stream = this.storageClient
           .getObject({
@@ -396,7 +396,7 @@ export class AwsS3Publish implements PublisherBase {
         ? entityTriplet
         : lowerCaseEntityTriplet(entityTriplet);
 
-      const entityRootDir = path.join(this.bucketRootPath, entityDir);
+      const entityRootDir = path.posix.join(this.bucketRootPath, entityDir);
 
       await this.storageClient
         .headObject({