diff --git a/src/test/java/com/google/devtools/build/android/r8/desugar/DesugarInfoCollector.java b/src/test/java/com/google/devtools/build/android/r8/desugar/DesugarInfoCollector.java
index d60fabbb6b5631..bd672ee4fc4694 100644
--- a/src/test/java/com/google/devtools/build/android/r8/desugar/DesugarInfoCollector.java
+++ b/src/test/java/com/google/devtools/build/android/r8/desugar/DesugarInfoCollector.java
@@ -74,7 +74,7 @@ public void visit(
     super.visit(version, access, name, signature, superName, interfaces);
     assertThat(computeMinorClassFileVersion(version)).isEqualTo(0);
     largestClassFileVersion = Math.max(version, largestClassFileVersion);
-    if (classNameFromBinaryName(name).startsWith("-$$Lambda$")) {
+    if (classNameFromBinaryName(name).contains("-$$ExternalSyntheticLambda")) {
       numberOfDesugaredLambdas++;
     }
     if (name.endsWith("$-CC")) {