diff --git a/src/com/google/javascript/jscomp/DiagnosticGroups.java b/src/com/google/javascript/jscomp/DiagnosticGroups.java
index 850a8a64dc4..222978c4143 100644
--- a/src/com/google/javascript/jscomp/DiagnosticGroups.java
+++ b/src/com/google/javascript/jscomp/DiagnosticGroups.java
@@ -492,6 +492,7 @@ public static DiagnosticGroup forName(String name) {
           "suspiciousCode",
           CheckDuplicateCase.DUPLICATE_CASE,
           CheckSuspiciousCode.SUSPICIOUS_SEMICOLON,
+          CheckSuspiciousCode.SUSPICIOUS_BREAKING_OUT_OF_OPTIONAL_CHAIN,
           CheckSuspiciousCode.SUSPICIOUS_COMPARISON_WITH_NAN,
           CheckSuspiciousCode.SUSPICIOUS_IN_OPERATOR,
           CheckSuspiciousCode.SUSPICIOUS_INSTANCEOF_LEFT_OPERAND,