diff --git a/src/components/lern-store/LernstoreDetailView.vue b/src/components/lern-store/LernstoreDetailView.vue
index 5ed02e679d..ba7f84c347 100644
--- a/src/components/lern-store/LernstoreDetailView.vue
+++ b/src/components/lern-store/LernstoreDetailView.vue
@@ -225,6 +225,7 @@ export default {
 			},
 		};
 	},
+	inject: ["mq"],
 	computed: {
 		author() {
 			return getAuthor(this.resource.properties);
@@ -233,7 +234,7 @@ export default {
 			return this.resource.preview.url;
 		},
 		closeButtonStyleSelector() {
-			return this.$mq === "tabletPortrait" || this.$mq === "mobile";
+			return this.mq === "tabletPortrait" || this.mq === "mobile";
 		},
 		collectionLink() {
 			let relation = getMetadataAttribute(
diff --git a/src/components/molecules/Alert.vue b/src/components/molecules/Alert.vue
index 9f4f035d3f..35746e35cc 100644
--- a/src/components/molecules/Alert.vue
+++ b/src/components/molecules/Alert.vue
@@ -46,6 +46,7 @@ export default {
 			mdiInformation,
 		};
 	},
+	inject: ["mq"],
 	computed: {
 		notifierData() {
 			return notifierModule.getNotifier;
@@ -54,7 +55,7 @@ export default {
 			return this.notifierData?.status;
 		},
 		isMobile() {
-			return this.$mq === "mobile";
+			return this.mq === "mobile";
 		},
 		text() {
 			return this.notifierData?.text;
diff --git a/src/layouts/loggedOut.layout.vue b/src/layouts/loggedOut.layout.vue
index 0aac86dbb5..5722b11aa6 100644
--- a/src/layouts/loggedOut.layout.vue
+++ b/src/layouts/loggedOut.layout.vue
@@ -32,7 +32,7 @@ export default {
 		TheFooter,
 	},
 
-	inject: { envConfigModule: { from: ENV_CONFIG_MODULE_KEY } },
+	inject: { envConfigModule: { from: ENV_CONFIG_MODULE_KEY }, mq: "mq" },
 
 	computed: {
 		ghostBaseUrl() {
@@ -58,7 +58,7 @@ export default {
 			];
 		},
 		isMobile() {
-			return this.$mq === "mobile";
+			return this.mq === "mobile";
 		},
 	},
 };
diff --git a/src/pages/rooms/RoomOverview.page.vue b/src/pages/rooms/RoomOverview.page.vue
index 41a738f463..0e3ca83295 100644
--- a/src/pages/rooms/RoomOverview.page.vue
+++ b/src/pages/rooms/RoomOverview.page.vue
@@ -147,6 +147,7 @@ export default {
 	inject: {
 		notifierModule: { from: NOTIFIER_MODULE_KEY },
 		i18n: { from: I18N_KEY },
+		mq: "mq",
 	},
 	layout: "defaultVuetify",
 	data() {
@@ -224,8 +225,8 @@ export default {
 	},
 	methods: {
 		getDeviceDims() {
-			this.device = this.$mq;
-			switch (this.$mq) {
+			this.device = this.mq;
+			switch (this.mq) {
 				case "tablet":
 					this.dimensions.colCount = 4;
 					this.dimensions.cellWidth = "4em";
diff --git a/src/plugins/global.d.ts b/src/plugins/global.d.ts
index d8e0fc7ee2..144a0ae5a8 100644
--- a/src/plugins/global.d.ts
+++ b/src/plugins/global.d.ts
@@ -1,11 +1,8 @@
-import Vue from "vue";
-
 interface Theme {
 	name: string;
 }
 declare module "vue/types/vue" {
 	interface Vue {
-		$mq(): string;
 		$theme: Theme;
 	}
 }