diff --git a/src/services/jsTyping.ts b/src/services/jsTyping.ts
index ee757a0ca28..516c66688dc 100644
--- a/src/services/jsTyping.ts
+++ b/src/services/jsTyping.ts
@@ -160,7 +160,8 @@ namespace ts.JsTyping {
         }
         // Add the cached typing locations for inferred typings that are already installed
         packageNameToTypingLocation.forEach((typing, name) => {
-            if (inferredTypings.has(name) && inferredTypings.get(name) === undefined && typesRegistry.has(name) && isTypingUpToDate(typing, typesRegistry.get(name)!)) {
+            const registryEntry = typesRegistry.get(name);
+            if (inferredTypings.has(name) && inferredTypings.get(name) === undefined && registryEntry !== undefined && isTypingUpToDate(typing, typesRegistry.get(name)!)) {
                 inferredTypings.set(name, typing.typingLocation);
             }
         });