diff --git a/client/css/post-upload.styl b/client/css/post-upload.styl
index aa36e0a..3836293 100644
--- a/client/css/post-upload.styl
+++ b/client/css/post-upload.styl
@@ -13,8 +13,10 @@ $cancel-button-color = tomato
 
         &.inactive input[type=submit],
         &.inactive .skip-duplicates
+        &.inactive .always-upload-similar
         &.uploading input[type=submit],
         &.uploading .skip-duplicates,
+        &.uploading .always-upload-similar
         &:not(.uploading) .cancel
             display: none
 
@@ -39,6 +41,9 @@ $cancel-button-color = tomato
     .skip-duplicates
         margin-left: 1em
 
+    .always-upload-similar
+        margin-left: 1em
+
     form>.messages
         margin-top: 1em
 
diff --git a/client/html/post_upload.tpl b/client/html/post_upload.tpl
index f1ed88f..6374fe8 100644
--- a/client/html/post_upload.tpl
+++ b/client/html/post_upload.tpl
@@ -13,6 +13,14 @@
                 }) %>
             </span>
 
+            <span class='always-upload-similar'>
+                <%= ctx.makeCheckbox({
+                    text: 'Always upload similar',
+                    name: 'always-upload-similar',
+                    checked: false,
+                }) %>
+            </span>
+
             <input type='button' value='Cancel' class='cancel'/>
         </div>
 
diff --git a/client/js/controllers/post_upload_controller.js b/client/js/controllers/post_upload_controller.js
index cfebb0a..83ec271 100644
--- a/client/js/controllers/post_upload_controller.js
+++ b/client/js/controllers/post_upload_controller.js
@@ -63,7 +63,8 @@ class PostUploadController {
                     promise.then(() =>
                         this._uploadSinglePost(
                             uploadable,
-                            e.detail.skipDuplicates
+                            e.detail.skipDuplicates,
+                            e.detail.alwaysUploadSimilar
                         )
                         .catch((error) => {
                             anyFailures = true;
@@ -84,7 +85,7 @@ class PostUploadController {
                             } else {
                                 this._view.showError(
                                     error.message,
-                                    error.uploadable
+                                    uploadable
                                 );
                             }
                         })
@@ -106,7 +107,7 @@ class PostUploadController {
             );
     }
 
-    _uploadSinglePost(uploadable, skipDuplicates) {
+    _uploadSinglePost(uploadable, skipDuplicates, alwaysUploadSimilar) {
         progress.start();
         let reverseSearchPromise = Promise.resolve();
         if (!uploadable.lookalikesConfirmed) {
@@ -135,7 +136,7 @@ class PostUploadController {
                     }
 
                     // notify about similar posts
-                    if (searchResult.similarPosts.length) {
+                    if (searchResult.similarPosts.length && !alwaysUploadSimilar) {
                         let error = new Error(
                             `Found ${searchResult.similarPosts.length} similar ` +
                                 "posts.\nYou can resume or discard this upload."
diff --git a/client/js/views/post_upload_view.js b/client/js/views/post_upload_view.js
index 7daf4fb..49aab7f 100644
--- a/client/js/views/post_upload_view.js
+++ b/client/js/views/post_upload_view.js
@@ -350,6 +350,7 @@ class PostUploadView extends events.EventTarget {
                 detail: {
                     uploadables: this._uploadables,
                     skipDuplicates: this._skipDuplicatesCheckboxNode.checked,
+                    alwaysUploadSimilar: this._alwaysUploadSimilarCheckboxNode.checked,
                 },
             })
         );
@@ -413,6 +414,10 @@ class PostUploadView extends events.EventTarget {
         return this._hostNode.querySelector("form [name=skip-duplicates]");
     }
 
+    get _alwaysUploadSimilarCheckboxNode() {
+        return this._hostNode.querySelector("form [name=always-upload-similar]");
+    }
+
     get _submitButtonNode() {
         return this._hostNode.querySelector("form [type=submit]");
     }