diff --git a/src/ui/Forms/Options/Settings.cs b/src/ui/Forms/Options/Settings.cs
index 9f0aee9df..83ce5deae 100644
--- a/src/ui/Forms/Options/Settings.cs
+++ b/src/ui/Forms/Options/Settings.cs
@@ -900,7 +900,7 @@ namespace Nikse.SubtitleEdit.Forms.Options
 
             if (gs.MergeLinesShorterThan >= 1 && gs.MergeLinesShorterThan < comboBoxMergeShortLineLength.Items.Count)
             {
-                comboBoxMergeShortLineLength.SelectedIndex = gs.MergeLinesShorterThan;
+                comboBoxMergeShortLineLength.SelectedIndex = gs.MergeLinesShorterThan - 1;
             }
             else
             {
@@ -1964,7 +1964,7 @@ namespace Nikse.SubtitleEdit.Forms.Options
             toolsSettings.VerifyPlaySeconds = comboBoxToolsVerifySeconds.SelectedIndex + 2;
             toolsSettings.StartSceneIndex = comboBoxToolsStartSceneIndex.SelectedIndex;
             toolsSettings.EndSceneIndex = comboBoxToolsEndSceneIndex.SelectedIndex;
-            gs.MergeLinesShorterThan = comboBoxMergeShortLineLength.SelectedIndex;
+            gs.MergeLinesShorterThan = comboBoxMergeShortLineLength.SelectedIndex + 1;
             if (gs.MergeLinesShorterThan > gs.SubtitleLineMaximumLength + 1)
             {
                 gs.MergeLinesShorterThan = gs.SubtitleLineMaximumLength;
@@ -3354,7 +3354,7 @@ namespace Nikse.SubtitleEdit.Forms.Options
 
             if (profile.MergeLinesShorterThan >= 1 && profile.MergeLinesShorterThan < comboBoxMergeShortLineLength.Items.Count)
             {
-                comboBoxMergeShortLineLength.SelectedIndex = profile.MergeLinesShorterThan;
+                comboBoxMergeShortLineLength.SelectedIndex = profile.MergeLinesShorterThan - 1;
             }
             else
             {
diff --git a/src/ui/Forms/Options/SettingsProfile.cs b/src/ui/Forms/Options/SettingsProfile.cs
index 348d36106..e41abd56b 100644
--- a/src/ui/Forms/Options/SettingsProfile.cs
+++ b/src/ui/Forms/Options/SettingsProfile.cs
@@ -62,7 +62,7 @@ namespace Nikse.SubtitleEdit.Forms.Options
 
             comboBoxMergeShortLineLength.BeginUpdate();
             comboBoxMergeShortLineLength.Items.Clear();
-            for (int i = 10; i < 100; i++)
+            for (int i = 1; i < 100; i++)
             {
                 comboBoxMergeShortLineLength.Items.Add(i.ToString(CultureInfo.InvariantCulture));
             }
@@ -204,7 +204,7 @@ namespace Nikse.SubtitleEdit.Forms.Options
             RulesProfiles[idx].MaxNumberOfLines = (int)numericUpDownMaxNumberOfLines.Value;
             RulesProfiles[idx].SubtitleMaximumWordsPerMinute = (int)numericUpDownMaxWordsMin.Value;
             RulesProfiles[idx].CpsIncludesSpace = checkBoxCpsIncludeWhiteSpace.Checked;
-            RulesProfiles[idx].MergeLinesShorterThan = comboBoxMergeShortLineLength.SelectedIndex + 10;
+            RulesProfiles[idx].MergeLinesShorterThan = comboBoxMergeShortLineLength.SelectedIndex + 1;
             RulesProfiles[idx].DialogStyle = DialogSplitMerge.GetDialogStyleFromIndex(comboBoxDialogStyle.SelectedIndex);
             RulesProfiles[idx].ContinuationStyle = ContinuationUtilities.GetContinuationStyleFromIndex(comboBoxContinuationStyle.SelectedIndex);
             UpdateRulesProfilesLine(idx);
@@ -262,9 +262,9 @@ namespace Nikse.SubtitleEdit.Forms.Options
                 numericUpDownMaxWordsMin.Value = p.SubtitleMaximumWordsPerMinute;
             }
             checkBoxCpsIncludeWhiteSpace.Checked = RulesProfiles[idx].CpsIncludesSpace;
-            if (RulesProfiles[idx].MergeLinesShorterThan >= 10 && RulesProfiles[idx].MergeLinesShorterThan - 10 < comboBoxMergeShortLineLength.Items.Count)
+            if (RulesProfiles[idx].MergeLinesShorterThan >= 1 && RulesProfiles[idx].MergeLinesShorterThan - 1 < comboBoxMergeShortLineLength.Items.Count)
             {
-                comboBoxMergeShortLineLength.SelectedIndex = RulesProfiles[idx].MergeLinesShorterThan - 10;
+                comboBoxMergeShortLineLength.SelectedIndex = RulesProfiles[idx].MergeLinesShorterThan - 1;
             }
             else
             {