diff --git a/app/coffee/modules/common/history.coffee b/app/coffee/modules/common/history.coffee
index b0a52545..e9987d09 100644
--- a/app/coffee/modules/common/history.coffee
+++ b/app/coffee/modules/common/history.coffee
@@ -233,6 +233,10 @@ HistoryDirective = ($log, $loading) ->
                     ng-model="<%- ngmodel %>.comment" tg-markitup="tg-markitup">
                 </textarea>
                 <% if (mode !== "edit") { %>
+                <a class="help-markdown" href="https://taiga.io/support/taiga-markdown-syntax/" target="_blank" title="Mardown syntax help">
+                    <span class="icon icon-help"></span>
+                    <span>Markdown syntax help</span>
+                </a>
                 <a href="" title="Comment" class="button button-green save-comment">Comment</a>
                 <% } %>
             </div>
diff --git a/app/styles/modules/common/history.scss b/app/styles/modules/common/history.scss
index 920d4582..4ff86a64 100644
--- a/app/styles/modules/common/history.scss
+++ b/app/styles/modules/common/history.scss
@@ -73,6 +73,10 @@
             @include transition(height .3s ease-in);
             height: 6rem;
         }
+        .help-markdown {
+            @include transition(opacity .3s linear);
+            opacity: 1;
+        }
         .preview-icon {
             opacity: 1;
             position: absolute;
@@ -86,6 +90,25 @@
         margin-bottom: .5rem;
         min-height: inherit;
     }
+    .help-markdown {
+        @extend %small;
+        color: $gray-light;
+        opacity: 0;
+        &:hover {
+            span {
+                @include transition(color .2s linear);
+                color: $grayer;
+            }
+            .icon {
+                @include transition(color .2s linear);
+                color: $fresh-taiga;
+            }
+        }
+        .icon {
+            color: $gray-light;
+            margin-right: .2rem;
+        }
+    }
     .save-comment {
         color: $white;
         float: right;