1 files changed, 1 insertions, 1 deletions
diff --git a/node_modules/tslint/lib/rules/noSwitchCaseFallThroughRule.d.ts b/node_modules/tslint/lib/rules/noSwitchCaseFallThroughRule.d.ts
index 1fe06743f..ff699286d 100644
--- a/node_modules/tslint/lib/rules/noSwitchCaseFallThroughRule.d.ts
+++ b/node_modules/tslint/lib/rules/noSwitchCaseFallThroughRule.d.ts
@@ -6,7 +6,7 @@ export declare class Rule extends Lint.Rules.AbstractRule {
     apply(sourceFile: ts.SourceFile): Lint.RuleFailure[];
 }
 export declare class NoSwitchCaseFallThroughWalker extends Lint.AbstractWalker<void> {
-    walk(sourceFile: ts.SourceFile): void;
+    walk(sourceFile: ts.SourceFile): void | undefined;
     private visitSwitchStatement({caseBlock: {clauses}});
     private isFallThroughAllowed(clause);
 }