diff --git a/app/src/main/java/com/hippo/ehviewer/ui/EhActivity.kt b/app/src/main/java/com/hippo/ehviewer/ui/EhActivity.kt
index 293fcbd4f..453e425e5 100644
--- a/app/src/main/java/com/hippo/ehviewer/ui/EhActivity.kt
+++ b/app/src/main/java/com/hippo/ehviewer/ui/EhActivity.kt
@@ -101,9 +101,9 @@ abstract class EhActivity : AppCompatActivity() {
     override fun onResume() {
         val locked_resume_time = System.currentTimeMillis() / 1000
         val locked_delay_time = locked_resume_time - locked_last_leave_time
-        if (Settings.getSecurity() && locked_delay_time >= Settings.getSecurityDelay() * 60
-            && isAuthenticationSupported() && EhApplication.locked
-        ) {
+        if (locked_delay_time < Settings.getSecurityDelay() * 60) {
+            EhApplication.locked = false
+        } else if (Settings.getSecurity() && isAuthenticationSupported() && EhApplication.locked) {
             startActivity(Intent(this, SecurityActivity::class.java))
         }
         super.onResume()