diff --git a/app/src/main/java/io/xpipe/app/core/AppWindowHelper.java b/app/src/main/java/io/xpipe/app/core/AppWindowHelper.java
index bd11cf93..ada62316 100644
--- a/app/src/main/java/io/xpipe/app/core/AppWindowHelper.java
+++ b/app/src/main/java/io/xpipe/app/core/AppWindowHelper.java
@@ -74,6 +74,15 @@ public class AppWindowHelper {
         childStage.setY(stage.getY() + stage.getHeight() / 2 - childStage.getHeight() / 2);
     }
 
+    public static void showAlert(Alert a, Consumer<Optional<ButtonType>> bt) {
+        ThreadHelper.runAsync(() -> {
+            var r = showBlockingAlert(a);
+            if (bt != null) {
+                bt.accept(r);
+            }
+        });
+    }
+
     public static void showAlert(Consumer<Alert> c, Consumer<Optional<ButtonType>> bt) {
         ThreadHelper.runAsync(() -> {
             var r = showBlockingAlert(c);
diff --git a/app/src/main/java/io/xpipe/app/util/MacOsPermissions.java b/app/src/main/java/io/xpipe/app/util/MacOsPermissions.java
index 19118571..9cd7e358 100644
--- a/app/src/main/java/io/xpipe/app/util/MacOsPermissions.java
+++ b/app/src/main/java/io/xpipe/app/util/MacOsPermissions.java
@@ -8,20 +8,22 @@ import javafx.application.Platform;
 import javafx.beans.property.SimpleBooleanProperty;
 import javafx.scene.control.Alert;
 
+import java.util.concurrent.atomic.AtomicReference;
+
 public class MacOsPermissions {
 
     private static Alert createAlert() {
         var alert = AppWindowHelper.createEmptyAlert();
-        alert.setAlertType(Alert.AlertType.CONFIRMATION);
+        alert.setAlertType(Alert.AlertType.INFORMATION);
         alert.setTitle(I18n.get("permissionsAlertTitle"));
         alert.setHeaderText(I18n.get("permissionsAlertTitleHeader"));
         alert.getDialogPane().setContent(AppWindowHelper.alertContentText(I18n.get("permissionsAlertTitleContent")));
-        alert.setAlertType(Alert.AlertType.CONFIRMATION);
+        alert.getButtonTypes().clear();
         return alert;
     }
 
     public static boolean waitForAccessibilityPermissions() throws Exception {
-        var alert = createAlert();
+        AtomicReference<Alert> alert = new AtomicReference<>();
         var state = new SimpleBooleanProperty(true);
         try (var pc = ShellStore.local().create().start()) {
             while (state.get()) {
@@ -29,17 +31,24 @@ public class MacOsPermissions {
                         "osascript -e 'tell application \"System Events\" to keystroke \"t\"'");
                 if (success) {
                     Platform.runLater(() -> {
-                        alert.close();
+                        if (alert.get() != null) {
+                            alert.get().close();
+                        }
                     });
                     return true;
                 } else {
                     Platform.runLater(() -> {
-                        var result = AppWindowHelper.showBlockingAlert(alert)
-                                .map(buttonType -> buttonType.getButtonData().isDefaultButton())
-                                .orElse(false);
-                        if (!result) {
-                            state.set(false);
+                        if (alert.get() != null) {
+                            return;
                         }
+
+                        alert.set(createAlert());
+                        AppWindowHelper.showAlert(alert.get(), buttonType -> {
+                            alert.get().close();
+                            if (buttonType.isEmpty() || !buttonType.get().getButtonData().isDefaultButton()) {
+                                state.set(false);
+                            }
+                        });
                     });
                     ThreadHelper.sleep(1000);
                 }
diff --git a/core/src/main/java/io/xpipe/core/process/ShellTypes.java b/core/src/main/java/io/xpipe/core/process/ShellTypes.java
index 37a09f41..7e4731a2 100644
--- a/core/src/main/java/io/xpipe/core/process/ShellTypes.java
+++ b/core/src/main/java/io/xpipe/core/process/ShellTypes.java
@@ -484,7 +484,7 @@ public class ShellTypes {
             var content = "";
             for (Map.Entry<String, String> e : variables.entrySet()) {
                 content += e.getKey() + "=\"" + e.getValue() + "\"";
-                content += getConcatenationOperator();
+                content += " ";
             }
             return content + command;
         }