diff --git a/do/settings_def.go b/do/settings_def.go
index 15f6139f40a7..020e639d6261 100644
--- a/do/settings_def.go
+++ b/do/settings_def.go
@@ -307,7 +307,7 @@ var (
 		mkArray("Shortcuts", keyboardShortcut, "custom keyboard shortcuts"),
 		mkField("EscToExit", Bool, false,
 			"if true, Esc key closes SumatraPDF").setExpert(),
-		mkField("ReuseInstance", Bool, false,
+		mkField("ReuseInstance", Bool, true,
 			"if true, we'll always open files using existing SumatraPDF process").setExpert(),
 		mkField("ReloadModifiedDocuments", Bool, true,
 			"if true, a document will be reloaded automatically whenever it's changed "+
diff --git a/src/Settings.h b/src/Settings.h
index b0248cb3b913..abbf4750a872 100644
--- a/src/Settings.h
+++ b/src/Settings.h
@@ -654,7 +654,7 @@ static const StructInfo gFILETIMEInfo = {sizeof(FILETIME), 2, gFILETIMEFields, "
 
 static const FieldInfo gGlobalPrefsFields[] = {
     {(size_t)-1, SettingType::Comment,
-     (intptr_t) "For documentation, see https://www.sumatrapdfreader.org/settings/settings3-5-1.html"},
+     (intptr_t) "For documentation, see https://www.sumatrapdfreader.org/settings/settings3-5-3.html"},
     {offsetof(GlobalPrefs, theme), SettingType::String, (intptr_t) ""},
     {offsetof(GlobalPrefs, fixedPageUI), SettingType::Struct, (intptr_t)&gFixedPageUIInfo},
     {offsetof(GlobalPrefs, comicBookUI), SettingType::Struct, (intptr_t)&gComicBookUIInfo},
@@ -683,7 +683,7 @@ static const FieldInfo gGlobalPrefsFields[] = {
     {offsetof(GlobalPrefs, defaultZoom), SettingType::String, (intptr_t) "fit page"},
     {offsetof(GlobalPrefs, shortcuts), SettingType::Array, (intptr_t)&gShortcutInfo},
     {offsetof(GlobalPrefs, escToExit), SettingType::Bool, false},
-    {offsetof(GlobalPrefs, reuseInstance), SettingType::Bool, false},
+    {offsetof(GlobalPrefs, reuseInstance), SettingType::Bool, true},
     {offsetof(GlobalPrefs, reloadModifiedDocuments), SettingType::Bool, true},
     {(size_t)-1, SettingType::Comment, 0},
     {offsetof(GlobalPrefs, mainWindowBackground), SettingType::Color, (intptr_t) "#80fff200"},