diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2bf866b0..469b77e0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   custom formats in the guide have the same name (e.g. 'DoVi').
 - Debug-level logs are now written to file in addition to the Info-level logs in console output.
 
+### Fixed
+
+- An issue with radarr `--preview` that caused duplicate output when updating a second instance has
+  been fixed.
+
 ## [1.4.2] - 2021-05-15
 
 ### Fixed
diff --git a/src/Trash/Radarr/CustomFormat/CustomFormatUpdater.cs b/src/Trash/Radarr/CustomFormat/CustomFormatUpdater.cs
index bb88367f..afacf05f 100644
--- a/src/Trash/Radarr/CustomFormat/CustomFormatUpdater.cs
+++ b/src/Trash/Radarr/CustomFormat/CustomFormatUpdater.cs
@@ -43,18 +43,19 @@ namespace Trash.Radarr.CustomFormat
             if (args.Preview)
             {
                 PreviewCustomFormats();
-                return;
             }
+            else
+            {
+                await _persistenceProcessor.PersistCustomFormats(_guideProcessor.ProcessedCustomFormats,
+                    _guideProcessor.DeletedCustomFormatsInCache, _guideProcessor.ProfileScores);
 
-            await _persistenceProcessor.PersistCustomFormats(_guideProcessor.ProcessedCustomFormats,
-                _guideProcessor.DeletedCustomFormatsInCache, _guideProcessor.ProfileScores);
-
-            PrintApiStatistics(args, _persistenceProcessor.Transactions);
-            PrintQualityProfileUpdates();
+                PrintApiStatistics(args, _persistenceProcessor.Transactions);
+                PrintQualityProfileUpdates();
 
-            // Cache all the custom formats (using ID from API response).
-            _cache.Update(_guideProcessor.ProcessedCustomFormats);
-            _cache.Save();
+                // Cache all the custom formats (using ID from API response).
+                _cache.Update(_guideProcessor.ProcessedCustomFormats);
+                _cache.Save();
+            }
 
             _persistenceProcessor.Reset();
             _guideProcessor.Reset();