diff --git a/ee/app/assets/stylesheets/pages/boards.scss b/ee/app/assets/stylesheets/pages/boards.scss
index e8b3a87b87e708dac3a2d38525f0fb935be53036..417397b6acf943af8eaffe315006dcaa8cb4ad61 100644
--- a/ee/app/assets/stylesheets/pages/boards.scss
+++ b/ee/app/assets/stylesheets/pages/boards.scss
@@ -104,15 +104,13 @@
 }
 
 .boards-switcher {
-  .boards-selector-wrapper {
-    .dropdown-menu.show.dropdown-extended-height {
-      max-height: $dropdown-max-height-lg;
-    }
-  }
-
-  .dropdown-menu.show {
+  .boards-selector-wrapper > .show.dropdown .dropdown-menu {
     // we cannot use d-flex from Bootstrap because of !important
     // see https://gitlab.com/gitlab-org/gitlab-ui/issues/38
     display: flex;
+
+    &.dropdown-extended-height {
+      max-height: $dropdown-max-height-lg;
+    }
   }
 }
diff --git a/ee/changelogs/unreleased/winh-issue-board-dropdowns-ee.yml b/ee/changelogs/unreleased/winh-issue-board-dropdowns-ee.yml
new file mode 100644
index 0000000000000000000000000000000000000000..76beee0bc5570757ea60086f0d7898bdb32f2b38
--- /dev/null
+++ b/ee/changelogs/unreleased/winh-issue-board-dropdowns-ee.yml
@@ -0,0 +1,5 @@
+---
+title: Fix misalignment of dropdowns in edit board modal of issue boards
+merge_request: 9909
+author:
+type: fixed