diff --git a/src/main/resources/assets/js/app/installation/InstallAppDialog.ts b/src/main/resources/assets/js/app/installation/InstallAppDialog.ts
index 49faee0e..ec881add 100644
--- a/src/main/resources/assets/js/app/installation/InstallAppDialog.ts
+++ b/src/main/resources/assets/js/app/installation/InstallAppDialog.ts
@@ -1,17 +1,16 @@
-import '../../api.ts';
 import {ApplicationInput} from './view/ApplicationInput';
 import {MarketAppsTreeGrid} from './view/MarketAppsTreeGrid';
 import {ApplicationUploaderEl} from './ApplicationUploaderEl';
 import {ApplicationUploadStartedEvent} from '../browse/ApplicationUploadStartedEvent';
 import TreeNode = api.ui.treegrid.TreeNode;
 import Application = api.application.Application;
-import i18n = api.util.i18n;
 import DivEl = api.dom.DivEl;
 import MarketApplication = api.application.MarketApplication;
 import UploadFailedEvent = api.ui.uploader.UploadFailedEvent;
 import UploadStartedEvent = api.ui.uploader.UploadStartedEvent;
 import ButtonEl = api.dom.ButtonEl;
 import StringHelper = api.util.StringHelper;
+import i18n = api.util.i18n;
 
 export class InstallAppDialog
     extends api.ui.dialog.ModalDialog {
@@ -59,15 +58,10 @@ export class InstallAppDialog
 
         this.applicationInput.onTextValueChanged(() => {
             this.clearButton.setVisible(!StringHelper.isEmpty(this.applicationInput.getValue()));
+            this.marketAppsTreeGrid.mask();
             this.marketAppsTreeGrid.refresh();
         });
 
-        const showMask = api.util.AppHelper.debounce(this.marketAppsTreeGrid.mask.bind(this.marketAppsTreeGrid), 300, false);
-        this.applicationInput.getTextInput().onValueChanged(() => {
-            if (!this.applicationInput.isUrlTyped()) {
-                showMask();
-            }
-        });
         this.applicationInput.onAppInstallStarted(() => {
             this.marketAppsTreeGrid.mask();
             this.statusMessage.showInstalling();
diff --git a/src/main/resources/assets/js/app/installation/view/ApplicationInput.ts b/src/main/resources/assets/js/app/installation/view/ApplicationInput.ts
index bb080f18..5eeec038 100644
--- a/src/main/resources/assets/js/app/installation/view/ApplicationInput.ts
+++ b/src/main/resources/assets/js/app/installation/view/ApplicationInput.ts
@@ -10,9 +10,12 @@ import UploadFailedEvent = api.ui.uploader.UploadFailedEvent;
 
 export class ApplicationInput extends api.dom.CompositeFormInputEl {
 
+    private static LAST_KEY_PRESS_TIMEOUT: number = 300;
+
     private textInput: InputEl;
+
     private applicationUploaderEl: ApplicationUploaderEl;
-    private LAST_KEY_PRESS_TIMEOUT: number;
+
     private cancelAction: Action;
 
     private textValueChangedListeners: {(): void}[] = [];
@@ -40,7 +43,6 @@ export class ApplicationInput extends api.dom.CompositeFormInputEl {
             showCancel: false
         }));
 
-        this.LAST_KEY_PRESS_TIMEOUT = 750;
         this.cancelAction = cancelAction;
 
         this.applicationUploaderEl.onUploadStarted((event: UploadStartedEvent<Application>) => {
@@ -67,7 +69,7 @@ export class ApplicationInput extends api.dom.CompositeFormInputEl {
     }
 
     private initUrlEnteredHandler() {
-        const keyDownHandler: () => void = api.util.AppHelper.debounce(this.startInstall.bind(this), this.LAST_KEY_PRESS_TIMEOUT);
+        const keyDownHandler: () => void = api.util.AppHelper.debounce(() => this.startInstall(), ApplicationInput.LAST_KEY_PRESS_TIMEOUT);
 
         this.onKeyDown((event) => {
             switch (event.keyCode) {