diff --git a/.vscode/settings.json b/.vscode/settings.json
index 628595a..178e57d 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -9,5 +9,9 @@
 	"prettier.requireConfig": true,
 	"search.exclude": {
 		"**/dist": true
-	}
+	},
+	"editor.codeActionsOnSave": {
+		"source.fixAll.eslint": true
+	},
+	"typescript.tsdk": "node_modules/typescript/lib"
 }
diff --git a/package.json b/package.json
index dbfb50e..3235da6 100644
--- a/package.json
+++ b/package.json
@@ -244,7 +244,7 @@
 	"devDependencies": {
 		"@types/lodash-es": "4.17.3",
 		"@types/node": "10.14.18",
-		"@types/vscode": "1.37.0",
+		"@types/vscode": "1.67.0",
 		"@typescript-eslint/eslint-plugin": "2.4.0",
 		"@typescript-eslint/parser": "2.4.0",
 		"circular-dependency-plugin": "5.2.0",
diff --git a/src/commands.ts b/src/commands.ts
index 8f6035f..a99ef66 100644
--- a/src/commands.ts
+++ b/src/commands.ts
@@ -87,6 +87,23 @@ export class Commands implements Disposable {
 	}
 }
 
+function findAlreadyOpenInOtherColumn(uri: Uri) {
+	const uriString = uri.toString();
+	const activeViewColumn = window.activeTextEditor && window.activeTextEditor.viewColumn;
+	const tabGroup = window.tabGroups.all.find(
+		(tg) =>
+			tg.viewColumn !== activeViewColumn &&
+			tg.tabs.some(
+				(tab) => {
+					const tabInput = tab.input;
+					const uri = typeof tabInput === 'object' && tabInput && (tabInput as { uri?: unknown }).uri;
+					return uri instanceof Uri && uri.toString() === uriString;
+				}
+			)
+	);
+	return tabGroup && tabGroup.viewColumn;
+}
+
 export async function openEditor(
 	uri: Uri,
 	options?: TextDocumentShowOptions & { openSideBySide?: boolean }
@@ -98,7 +115,7 @@ export async function openEditor(
 			preserveFocus: false,
 			preview: true,
 			viewColumn: openSideBySide
-				? ViewColumn.Beside
+				? findAlreadyOpenInOtherColumn(uri) || ViewColumn.Beside
 				: (window.activeTextEditor && window.activeTextEditor.viewColumn) || ViewColumn.One
 		};
 
diff --git a/src/rulesProvider.ts b/src/rulesProvider.ts
index 2c67210..f5abe2e 100644
--- a/src/rulesProvider.ts
+++ b/src/rulesProvider.ts
@@ -146,7 +146,7 @@ export class RulesProvider implements Disposable {
 		Logger.log(`RulesProvider.findFiles(${pattern}, ${maxResults})`);
 
 		const files = await workspace.findFiles(
-			{ base: rootPath, pattern: pattern },
+			{ base: rootPath, baseUri: Uri.file(rootPath), pattern: pattern },
 			this._excludes,
 			maxResults,
 			token
diff --git a/yarn.lock b/yarn.lock
index 82c2414..ee678cd 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -91,10 +91,10 @@
   dependencies:
     source-map "^0.6.1"
 
-"@types/vscode@1.37.0":
-  version "1.37.0"
-  resolved "https://registry.yarnpkg.com/@types/vscode/-/vscode-1.37.0.tgz#fb26ffabfabcd50ba70e8b454122a91b84548080"
-  integrity sha512-PRfeuqYuzk3vjf+puzxltIUWC+AhEGYpFX29/37w30DQSQnpf5AgMVf7GDBAdmTbWTBou+EMFz/Ne6XCM/KxzQ==
+"@types/vscode@1.67.0":
+  version "1.67.0"
+  resolved "https://registry.yarnpkg.com/@types/vscode/-/vscode-1.67.0.tgz#8eaba41d1591aa02f5d960b7dfae3b16e066f08c"
+  integrity sha512-GH8BDf8cw9AC9080uneJfulhSa7KHSMI2s/CyKePXoGNos9J486w2V4YKoeNUqIEkW4hKoEAWp6/cXTwyGj47g==
 
 "@types/webpack-sources@*":
   version "0.1.5"