diff --git a/src/user/PreferencesController.ts b/src/user/PreferencesController.ts
index 077bac575d..728593bf67 100644
--- a/src/user/PreferencesController.ts
+++ b/src/user/PreferencesController.ts
@@ -231,6 +231,15 @@ export class PreferencesController extends BaseController<BaseConfig, Preference
 		this.update({ frequentRpcList: [...frequentRpcList] });
 	}
 
+	/**
+	 * Sets selected address
+	 *
+	 * @param selectedAddress - Ethereum address
+	 */
+	setSelectedAddress(selectedAddress: string) {
+		this.update({ selectedAddress: toChecksumAddress(selectedAddress) });
+	}
+
 	/**
 	 * Sets new IPFS gateway
 	 *
diff --git a/tests/PreferencesController.test.ts b/tests/PreferencesController.test.ts
index 1ebe0ae41c..b29f2cf284 100644
--- a/tests/PreferencesController.test.ts
+++ b/tests/PreferencesController.test.ts
@@ -116,4 +116,10 @@ describe('PreferencesController', () => {
 		controller.setIpfsGateway('https://ipfs.infura.io/ipfs/');
 		expect(controller.state.ipfsGateway).toEqual('https://ipfs.infura.io/ipfs/');
 	});
+
+	it('should update selected address as checksummed', () => {
+		const controller = new PreferencesController();
+		controller.setSelectedAddress('0x95d2bc047b0ddec1e4a178eeb64d59f5e735cd0a');
+		expect(controller.state.selectedAddress).toEqual('0x95D2bC047B0dDEc1E4A178EeB64d59F5E735cd0A');
+	});
 });