diff --git a/src/compiler/program.ts b/src/compiler/program.ts
index 31220c68d3cb9..6467dd2afc81a 100755
--- a/src/compiler/program.ts
+++ b/src/compiler/program.ts
@@ -577,7 +577,6 @@ namespace ts {
         const packageIdToSourceFile = createMap<SourceFile>();
         // Maps from a SourceFile's `.path` to the name of the package it was imported with.
         let sourceFileToPackageName = createMap<string>();
-        // See `sourceFileIsRedirectedTo`.
         let redirectTargetsSet = createMap<true>();
 
         const filesByName = createMap<SourceFile | undefined>();
diff --git a/src/compiler/types.ts b/src/compiler/types.ts
index f0aba4a34d776..987d403e7cd9e 100644
--- a/src/compiler/types.ts
+++ b/src/compiler/types.ts
@@ -2527,7 +2527,7 @@ namespace ts {
         /**
          * If two source files are for the same version of the same package, one will redirect to the other.
          * (See `createRedirectSourceFile` in program.ts.)
-         * The redirect will have this set. The other will not have anything set, but see Program#sourceFileIsRedirectedTo.
+         * The redirect will have this set. The redirected-to source file will be in `redirectTargetsSet`.
          */
         /* @internal */ redirectInfo?: RedirectInfo | undefined;