diff --git a/services/core/java/com/android/server/policy/PhoneWindowManager.java b/services/core/java/com/android/server/policy/PhoneWindowManager.java
index b623dd5d6867a..2026897dc43fc 100644
--- a/services/core/java/com/android/server/policy/PhoneWindowManager.java
+++ b/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -1373,8 +1373,13 @@ public class PhoneWindowManager implements WindowManagerPolicy {
             case LONG_PRESS_BACK_NOTHING:
                 break;
             case LONG_PRESS_BACK_GO_TO_VOICE_ASSIST:
-                Intent intent = new Intent(Intent.ACTION_VOICE_ASSIST);
-                startActivityAsUser(intent, UserHandle.CURRENT_OR_SELF);
+                final boolean keyguardActive = mKeyguardDelegate == null
+                        ? false
+                        : mKeyguardDelegate.isShowing();
+                if (!keyguardActive) {
+                    Intent intent = new Intent(Intent.ACTION_VOICE_ASSIST);
+                    startActivityAsUser(intent, UserHandle.CURRENT_OR_SELF);
+                }
                 break;
         }
     }