diff --git a/src/vector/platform/ElectronPlatform.js b/src/vector/platform/ElectronPlatform.js
index a12de530..13604cda 100644
--- a/src/vector/platform/ElectronPlatform.js
+++ b/src/vector/platform/ElectronPlatform.js
@@ -67,7 +67,7 @@ export default class ElectronPlatform extends VectorBasePlatform {
         dis.register(_onAction);
     }
 
-    getHumanReadableName() {
+    getHumanReadableName(): string {
         return 'Electron Platform';
     }
 
diff --git a/src/vector/platform/VectorBasePlatform.js b/src/vector/platform/VectorBasePlatform.js
index 4ff3c222..04caecdc 100644
--- a/src/vector/platform/VectorBasePlatform.js
+++ b/src/vector/platform/VectorBasePlatform.js
@@ -35,7 +35,7 @@ export default class VectorBasePlatform extends BasePlatform {
         this._updateFavicon();
     }
 
-    getHumanReadableName() {
+    getHumanReadableName(): string {
         return 'Vector Base Platform';
     }
 
diff --git a/src/vector/platform/WebPlatform.js b/src/vector/platform/WebPlatform.js
index 1db024ed..1a3c46fb 100644
--- a/src/vector/platform/WebPlatform.js
+++ b/src/vector/platform/WebPlatform.js
@@ -31,7 +31,7 @@ export default class WebPlatform extends VectorBasePlatform {
         this.runningVersion = null;
     }
 
-    getHumanReadableName() {
+    getHumanReadableName(): string {
         return 'Web Platform';
     }