diff --git a/src/test/java/com/android/tools/r8/KotlinCompilerTool.java b/src/test/java/com/android/tools/r8/KotlinCompilerTool.java
index 8970b5d..180b043 100644
--- a/src/test/java/com/android/tools/r8/KotlinCompilerTool.java
+++ b/src/test/java/com/android/tools/r8/KotlinCompilerTool.java
@@ -181,7 +181,7 @@
   private final List<String> additionalArguments = new ArrayList<>();
   private boolean useJvmAssertions;
   // TODO(b/211590675): We should enable assertions by default.
-  private boolean enableAssertions = false;
+  private boolean enableAssertions = true;
   private Path output = null;
 
   private KotlinCompilerTool(
@@ -252,8 +252,8 @@
     return this;
   }
 
-  public KotlinCompilerTool enableAssertions() {
-    this.enableAssertions = true;
+  public KotlinCompilerTool disableAssertions() {
+    this.enableAssertions = false;
     return this;
   }
 
diff --git a/src/test/java/com/android/tools/r8/kotlin/metadata/MetadataRewriteAllowAccessModificationTest.java b/src/test/java/com/android/tools/r8/kotlin/metadata/MetadataRewriteAllowAccessModificationTest.java
index 21c1cce..29b0027 100644
--- a/src/test/java/com/android/tools/r8/kotlin/metadata/MetadataRewriteAllowAccessModificationTest.java
+++ b/src/test/java/com/android/tools/r8/kotlin/metadata/MetadataRewriteAllowAccessModificationTest.java
@@ -121,6 +121,7 @@
             .addSourceFiles(
                 getKotlinFileInTest(DescriptorUtils.getBinaryNameFromJavaType(PKG_APP), "main"))
             .setOutputPath(temp.newFolder().toPath())
+            .disableAssertions()
             .compileRaw();
     assertEquals(1, mainResult.exitCode);
     assertThat(mainResult.stderr, containsString("cannot access 'LibReference'"));
diff --git a/src/test/java/com/android/tools/r8/kotlin/metadata/MetadataRewriteCrossinlineBlockTest.java b/src/test/java/com/android/tools/r8/kotlin/metadata/MetadataRewriteCrossinlineBlockTest.java
index 6558e13..5396f4d 100644
--- a/src/test/java/com/android/tools/r8/kotlin/metadata/MetadataRewriteCrossinlineBlockTest.java
+++ b/src/test/java/com/android/tools/r8/kotlin/metadata/MetadataRewriteCrossinlineBlockTest.java
@@ -76,7 +76,6 @@
             .addSourceFiles(
                 getKotlinFileInTest(DescriptorUtils.getBinaryNameFromJavaType(PKG_APP), "main"))
             .setOutputPath(temp.newFolder().toPath())
-            .enableAssertions()
             .compile();
     testForJvm()
         .addRunClasspathFiles(kotlinc.getKotlinStdlibJar(), libJar)