diff --git a/src/assets/javascripts/services.js b/src/assets/javascripts/services.js
index a1935bf..3aba28d 100644
--- a/src/assets/javascripts/services.js
+++ b/src/assets/javascripts/services.js
@@ -617,7 +617,11 @@ function switchInstance(url, customService) {
 		if (customService) {
 			const instancesList = options[options[customService].frontend]
 			if (instancesList !== undefined) {
-				resolve(`${utils.getNextInstance(url.origin, instancesList)}${url.pathname}${url.search}`)
+				const newInstance = utils.getNextInstance(url.origin, instancesList)
+				if (newInstance) {
+					resolve(`${newInstance}${url.pathname}${url.search}`)
+					return
+				}
 			}
 		} else {
 			for (const service in config.services) {
@@ -630,8 +634,11 @@ function switchInstance(url, customService) {
 					resolve()
 					return
 				}
-				resolve(`${utils.getNextInstance(url.origin, instancesList)}${url.pathname}${url.search}`)
-				return
+				const newInstance = utils.getNextInstance(url.origin, instancesList)
+				if (newInstance) {
+					resolve(`${newInstance}${url.pathname}${url.search}`)
+					return
+				}
 			}
 		}
 		resolve()
diff --git a/src/pages/background/background.js b/src/pages/background/background.js
index 9057f64..3df43b5 100644
--- a/src/pages/background/background.js
+++ b/src/pages/background/background.js
@@ -160,9 +160,7 @@ browser.contextMenus.onClicked.addListener(async (info) => {
 		case 'switchInstanceTab': {
 			const url = new URL(info.pageUrl)
 			const newUrl = await servicesHelper.switchInstance(url)
-			if (newUrl) {
-				browser.tabs.update({ url: newUrl })
-			}
+			if (newUrl) browser.tabs.update({ url: newUrl })
 			return
 		}
 		case 'settingsTab': {