diff --git a/changelog.d/preview_posting.fix b/changelog.d/preview_posting.fix
new file mode 100644
index 000000000..1a35dbeba
--- /dev/null
+++ b/changelog.d/preview_posting.fix
@@ -0,0 +1 @@
+Fix posting not working when using preview
diff --git a/src/components/post_status_form/post_status_form.js b/src/components/post_status_form/post_status_form.js
index 1acd211c4..ef012c9cf 100644
--- a/src/components/post_status_form/post_status_form.js
+++ b/src/components/post_status_form/post_status_form.js
@@ -721,6 +721,10 @@ const PostStatusForm = {
         })
         .finally(() => {
           this.previewLoading = false
+          // If we post right after doing a preview request
+          // backend treats non-preview request as preview one
+          // and "eats" the post
+          this.updateIdempotencyKey()
         })
     },
     debouncePreviewStatus: debounce(function () {