diff --git a/src/@types/global.d.ts b/src/@types/global.d.ts
index f556ff8b5c..76145c7e67 100644
--- a/src/@types/global.d.ts
+++ b/src/@types/global.d.ts
@@ -39,8 +39,8 @@ declare global {
         mx_RebrandListener: RebrandListener;
         mx_RoomListStore: RoomListStoreClass;
         mx_RoomListLayoutStore: RoomListLayoutStore;
-        mxPlatformPeg: PlatformPeg;
-        mxIntegrationManagers: typeof IntegrationManagers;
+        mx_PlatformPeg: PlatformPeg;
+        mx_IntegrationManagers: typeof IntegrationManagers;
     }
 
     // workaround for https://github.com/microsoft/TypeScript/issues/30933
diff --git a/src/ContentMessages.tsx b/src/ContentMessages.tsx
index e0597f5e59..25445b1c74 100644
--- a/src/ContentMessages.tsx
+++ b/src/ContentMessages.tsx
@@ -621,9 +621,9 @@ export default class ContentMessages {
     }
 
     static sharedInstance() {
-        if (window.mxContentMessages === undefined) {
-            window.mxContentMessages = new ContentMessages();
+        if (window.mx_ContentMessages === undefined) {
+            window.mx_ContentMessages = new ContentMessages();
         }
-        return window.mxContentMessages;
+        return window.mx_ContentMessages;
     }
 }
diff --git a/src/DeviceListener.ts b/src/DeviceListener.ts
index a37521118f..e9001d43b4 100644
--- a/src/DeviceListener.ts
+++ b/src/DeviceListener.ts
@@ -48,8 +48,8 @@ export default class DeviceListener {
     private displayingToastsForDeviceIds = new Set<string>();
 
     static sharedInstance() {
-        if (!window.mxDeviceListener) window.mxDeviceListener = new DeviceListener();
-        return window.mxDeviceListener;
+        if (!window.mx_DeviceListener) window.mx_DeviceListener = new DeviceListener();
+        return window.mx_DeviceListener;
     }
 
     start() {
diff --git a/src/PlatformPeg.ts b/src/PlatformPeg.ts
index 1d2b813ebc..c14e11145b 100644
--- a/src/PlatformPeg.ts
+++ b/src/PlatformPeg.ts
@@ -45,7 +45,7 @@ export class PlatformPeg {
     }
 }
 
-if (!window.mxPlatformPeg) {
-    window.mxPlatformPeg = new PlatformPeg();
+if (!window.mx_PlatformPeg) {
+    window.mx_PlatformPeg = new PlatformPeg();
 }
-export default window.mxPlatformPeg;
+export default window.mx_PlatformPeg;
diff --git a/src/integrations/IntegrationManagers.ts b/src/integrations/IntegrationManagers.ts
index cf934521c0..4d90d4871d 100644
--- a/src/integrations/IntegrationManagers.ts
+++ b/src/integrations/IntegrationManagers.ts
@@ -245,4 +245,4 @@ export class IntegrationManagers {
 }
 
 // For debugging
-window.mxIntegrationManagers = IntegrationManagers;
+window.mx_IntegrationManagers = IntegrationManagers;
diff --git a/src/stores/ToastStore.ts b/src/stores/ToastStore.ts
index afb9fe1f8c..7063ba541a 100644
--- a/src/stores/ToastStore.ts
+++ b/src/stores/ToastStore.ts
@@ -37,8 +37,8 @@ export default class ToastStore extends EventEmitter {
     private countSeen = 0;
 
     static sharedInstance() {
-        if (!window.mxToastStore) window.mxToastStore = new ToastStore();
-        return window.mxToastStore;
+        if (!window.mx_ToastStore) window.mx_ToastStore = new ToastStore();
+        return window.mx_ToastStore;
     }
 
     reset() {