diff --git a/leakcanary-android-utils/src/main/java/leakcanary/internal/Handlers.kt b/leakcanary-android-utils/src/main/java/leakcanary/internal/Handlers.kt
index 1f2a09e747..9e6b6a3136 100644
--- a/leakcanary-android-utils/src/main/java/leakcanary/internal/Handlers.kt
+++ b/leakcanary-android-utils/src/main/java/leakcanary/internal/Handlers.kt
@@ -5,14 +5,16 @@ import android.os.Looper
 
 internal val mainHandler by lazy { Handler(Looper.getMainLooper()) }
 
+internal val isMainThread: Boolean get() = Looper.getMainLooper().thread === Thread.currentThread()
+
 internal fun checkMainThread() {
-  check(Looper.getMainLooper().thread === Thread.currentThread()) {
+  check(isMainThread) {
     "Should be called from the main thread, not ${Thread.currentThread()}"
   }
 }
 
 internal fun checkNotMainThread() {
-  check(Looper.getMainLooper().thread !== Thread.currentThread()) {
+  check(!isMainThread) {
     "Should not be called from the main thread"
   }
 }