diff --git a/src/test/java/com/android/tools/r8/ir/analysis/type/NarrowingWithoutSubtypingTest.java b/src/test/java/com/android/tools/r8/ir/analysis/type/NarrowingWithoutSubtypingTest.java
index 343a944..c719a9a 100644
--- a/src/test/java/com/android/tools/r8/ir/analysis/type/NarrowingWithoutSubtypingTest.java
+++ b/src/test/java/com/android/tools/r8/ir/analysis/type/NarrowingWithoutSubtypingTest.java
@@ -4,12 +4,7 @@
 
 package com.android.tools.r8.ir.analysis.type;
 
-import static com.android.tools.r8.DiagnosticsMatcher.diagnosticMessage;
-import static org.hamcrest.CoreMatchers.containsString;
-import static org.junit.Assert.assertThrows;
 
-import com.android.tools.r8.CompilationFailedException;
-import com.android.tools.r8.D8TestBuilder;
 import com.android.tools.r8.TestBase;
 import com.android.tools.r8.TestParameters;
 import com.android.tools.r8.utils.BooleanUtils;
@@ -38,32 +33,17 @@
 
   @Test
   public void test() throws Exception {
-    D8TestBuilder d8TestBuilder =
-        testForD8()
-            .addInnerClasses(NarrowingWithoutSubtypingTest.class)
-            .addOptionsModification(
-                options -> {
-                  options.testing.readInputStackMaps = readStackMap;
-                  options.testing.enableNarrowAndWideningingChecksInD8 = true;
-                  options.testing.noLocalsTableOnInput = true;
-                })
-            .setMinApi(parameters);
-    if (readStackMap) {
-      d8TestBuilder
-          .run(parameters.getRuntime(), TestClass.class)
-          .assertSuccessWithOutputLines("Hello world!");
-    } else {
-      // TODO(b/169120386): We should not be narrowing in D8.
-      assertThrows(
-          CompilationFailedException.class,
-          () -> {
-            d8TestBuilder.compileWithExpectedDiagnostics(
-                diagnostics ->
-                    diagnostics.assertAllErrorsMatch(
-                        diagnosticMessage(
-                            containsString("java.lang.AssertionError: During NARROWING"))));
-          });
-    }
+    testForD8()
+        .addInnerClasses(NarrowingWithoutSubtypingTest.class)
+        .addOptionsModification(
+            options -> {
+              options.testing.readInputStackMaps = readStackMap;
+              options.testing.enableNarrowAndWideningingChecksInD8 = true;
+              options.testing.noLocalsTableOnInput = true;
+            })
+        .setMinApi(parameters)
+        .run(parameters.getRuntime(), TestClass.class)
+        .assertSuccessWithOutputLines("Hello world!");
   }
 
   static class TestClass {