diff --git a/common/static/coffee/src/discussion/discussion_module_view.coffee b/common/static/coffee/src/discussion/discussion_module_view.coffee
index 8f27943560..7df5bc3656 100644
--- a/common/static/coffee/src/discussion/discussion_module_view.coffee
+++ b/common/static/coffee/src/discussion/discussion_module_view.coffee
@@ -97,7 +97,7 @@ if Backbone?
       else
         @$el.append($discussion)
 
-      @newPostForm = $('.new-post-article')
+      @newPostForm = this.$el.find('.new-post-article')
       @threadviews = @discussion.map (thread) =>
         view = new DiscussionThreadView(
           el: @$("article#thread_#{thread.id}"),
diff --git a/common/test/acceptance/pages/lms/discussion.py b/common/test/acceptance/pages/lms/discussion.py
index d097fd76b5..a512e94588 100644
--- a/common/test/acceptance/pages/lms/discussion.py
+++ b/common/test/acceptance/pages/lms/discussion.py
@@ -368,6 +368,35 @@ class InlineDiscussionPage(PageObject):
     def element_exists(self, selector):
         return self.q(css=self._discussion_selector + " " + selector).present
 
+    def is_new_post_opened(self):
+        return self._find_within(".new-post-article").visible
+
+    def click_element(self, selector):
+        self.wait_for_element_presence(
+            "{discussion} {selector}".format(discussion=self._discussion_selector, selector=selector),
+            "{selector} is visible".format(selector=selector)
+        )
+        self._find_within(selector).click()
+
+    def click_cancel_new_post(self):
+        self.click_element(".cancel")
+        EmptyPromise(
+            lambda: not self.is_new_post_opened(),
+            "New post closed"
+        ).fulfill()
+
+    def click_new_post_button(self):
+        self.click_element(".new-post-btn")
+        EmptyPromise(
+            self.is_new_post_opened,
+            "New post opened"
+        ).fulfill()
+
+    @wait_for_js
+    def _is_element_visible(self, selector):
+        query = self._find_within(selector)
+        return query.present and query.visible
+
 
 class InlineDiscussionThreadPage(DiscussionThreadPage):
     def __init__(self, browser, thread_id):
diff --git a/common/test/acceptance/tests/discussion/test_discussion.py b/common/test/acceptance/tests/discussion/test_discussion.py
index 63b461586f..f82c0152a9 100644
--- a/common/test/acceptance/tests/discussion/test_discussion.py
+++ b/common/test/acceptance/tests/discussion/test_discussion.py
@@ -446,6 +446,7 @@ class InlineDiscussionTest(UniqueCourseTest, DiscussionResponsePaginationTestMix
     def setUp(self):
         super(InlineDiscussionTest, self).setUp()
         self.discussion_id = "test_discussion_{}".format(uuid4().hex)
+        self.additional_discussion_id = "test_discussion_{}".format(uuid4().hex)
         self.course_fix = CourseFixture(**self.course_info).add_children(
             XBlockFixtureDesc("chapter", "Test Section").add_children(
                 XBlockFixtureDesc("sequential", "Test Subsection").add_children(
@@ -454,6 +455,11 @@ class InlineDiscussionTest(UniqueCourseTest, DiscussionResponsePaginationTestMix
                             "discussion",
                             "Test Discussion",
                             metadata={"discussion_id": self.discussion_id}
+                        ),
+                        XBlockFixtureDesc(
+                            "discussion",
+                            "Test Discussion 1",
+                            metadata={"discussion_id": self.additional_discussion_id}
                         )
                     )
                 )
@@ -465,6 +471,7 @@ class InlineDiscussionTest(UniqueCourseTest, DiscussionResponsePaginationTestMix
         self.courseware_page = CoursewarePage(self.browser, self.course_id)
         self.courseware_page.visit()
         self.discussion_page = InlineDiscussionPage(self.browser, self.discussion_id)
+        self.additional_discussion_page = InlineDiscussionPage(self.browser, self.additional_discussion_id)
 
     def setup_thread_page(self, thread_id):
         self.discussion_page.expand_discussion()
@@ -526,6 +533,35 @@ class InlineDiscussionTest(UniqueCourseTest, DiscussionResponsePaginationTestMix
         self.assertFalse(self.thread_page.is_comment_deletable("comment1"))
         self.assertFalse(self.thread_page.is_comment_deletable("comment2"))
 
+    def test_dual_discussion_module(self):
+        """
+        Scenario: Two discussion module in one unit shouldn't override their actions
+        Given that I'm on courseware page where there are two inline discussion
+        When I click on one discussion module new post button
+        Then it should add new post form of that module in DOM
+        And I should be shown new post form of that module
+        And I shouldn't be shown second discussion module new post form
+        And I click on second discussion module new post button
+        Then it should add new post form of second module in DOM
+        And I should be shown second discussion new post form
+        And I shouldn't be shown first discussion module new post form
+        And I have two new post form in the DOM
+        When I click back on first module new post button
+        And I should be shown new post form of that module
+        And I shouldn't be shown second discussion module new post form
+        """
+        self.discussion_page.wait_for_page()
+        self.additional_discussion_page.wait_for_page()
+        self.discussion_page.click_new_post_button()
+        with self.discussion_page.handle_alert():
+            self.discussion_page.click_cancel_new_post()
+        self.additional_discussion_page.click_new_post_button()
+        self.assertFalse(self.discussion_page._is_element_visible(".new-post-article"))
+        with self.additional_discussion_page.handle_alert():
+            self.additional_discussion_page.click_cancel_new_post()
+        self.discussion_page.click_new_post_button()
+        self.assertFalse(self.additional_discussion_page._is_element_visible(".new-post-article"))
+
 
 @attr('shard_1')
 class DiscussionUserProfileTest(UniqueCourseTest):