diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9a4e783f..45ec5f6f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
     - Not properly treating a dependency version before comparing with others (could display that a given dependency was not found)
     
 - Flatpak
+    - displaying duplicate runtimes on the upgrade summary when a runtime is available at the system and user levels
     - installation level tooltip not being localized
     - displaying installation level tooltip for not installed apps
 
diff --git a/bauh/gems/flatpak/controller.py b/bauh/gems/flatpak/controller.py
index 30e57a91..10c8ed0e 100644
--- a/bauh/gems/flatpak/controller.py
+++ b/bauh/gems/flatpak/controller.py
@@ -630,8 +630,9 @@ class FlatpakManager(SoftwareManager):
             all_runtimes = []
             for runtime in runtimes:
                 for partial in partials:
-                    if partial.base_id == runtime.id:
+                    if partial.installation == runtime.installation and partial.base_id == runtime.id:
                         all_runtimes.append(partial)
+                        break
 
                 all_runtimes.append(runtime)
             return [*all_runtimes, *apps]