diff --git a/app/build.gradle b/app/build.gradle
index 837848f4..457dcd23 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -15,7 +15,7 @@ def applicationProperties = new Properties()
 applicationProperties.load(new FileInputStream(rootProject.file("application.properties")))
 def sha = System.getenv("GITHUB_SHA")
 def isCI = System.getenv("CI")
-def isSelfBuild = isCI != "true"
+def isSelfBuild = isCI == null || !isCI.equalsIgnoreCase("true")
 def applicationVersionCode = applicationProperties["versionCode"].toInteger()
 def applicationVersionName = applicationProperties["versionName"]
 def isPerVersion = applicationProperties["isPerRelease"] == "true"
diff --git a/app/src/main/java/com/huanchengfly/tieba/post/App.kt b/app/src/main/java/com/huanchengfly/tieba/post/App.kt
index 2e8cb578..cc1e63f5 100644
--- a/app/src/main/java/com/huanchengfly/tieba/post/App.kt
+++ b/app/src/main/java/com/huanchengfly/tieba/post/App.kt
@@ -142,7 +142,7 @@ class App : Application(), IApp, IGetter, SketchFactory {
                 Analytics::class.java, Crashes::class.java, Distribute::class.java
             )
         }
-        setIcon(keepOld = !BuildConfig.DEBUG && !isSelfBuild)
+        setIcon(keepOld = BuildConfig.DEBUG || isSelfBuild)
         AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM)
         ThemeUtils.init(ThemeDelegate)
         registerActivityLifecycleCallbacks(ClipBoardLinkDetector)