diff --git a/packages/atlas-core/CHANGELOG.md b/packages/atlas-core/CHANGELOG.md
index ac6236aff..15cf72396 100644
--- a/packages/atlas-core/CHANGELOG.md
+++ b/packages/atlas-core/CHANGELOG.md
@@ -6,6 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased]
 
+### Fixed
+
+- We fixed an issue where the scroll container did not stretch to the full height in popup layouts.
+
 ## [4.3.4] Atlas Core - 2026-2-25
 
 ### Fixed
diff --git a/packages/atlas/src/themesource/atlas_core/web/core/widgets/_scroll-container-react.scss b/packages/atlas/src/themesource/atlas_core/web/core/widgets/_scroll-container-react.scss
index 09a860ee6..61433d1e5 100644
--- a/packages/atlas/src/themesource/atlas_core/web/core/widgets/_scroll-container-react.scss
+++ b/packages/atlas/src/themesource/atlas_core/web/core/widgets/_scroll-container-react.scss
@@ -42,6 +42,10 @@
         flex-direction: column;
     }
 
+    .mx-window-body:has(> .mx-scrollcontainer:only-child) {
+        display: flex;
+    }
+
     .mx-scrollcontainer {
         flex: 1 0 0;
         display: flex;