diff --git a/src/language/lexer.js b/src/language/lexer.js
index e9de3152dd..57efd1011b 100644
--- a/src/language/lexer.js
+++ b/src/language/lexer.js
@@ -112,14 +112,6 @@ export function isPunctuatorToken(token: Token) {
   );
 }
 
-/**
- * A helper function to describe a token as a string for debugging
- */
-export function getTokenDesc(token: Token): string {
-  const value = token.value;
-  return value ? `${token.kind} "${value}"` : token.kind;
-}
-
 /**
  * Helper function for constructing the Token object.
  */
diff --git a/src/language/parser.js b/src/language/parser.js
index bad99f4428..6643ff5b6c 100644
--- a/src/language/parser.js
+++ b/src/language/parser.js
@@ -6,7 +6,7 @@ import { Source } from './source';
 import { type GraphQLError } from '../error/GraphQLError';
 import { syntaxError } from '../error/syntaxError';
 import { type TokenKindEnum, TokenKind } from './tokenKind';
-import { type Lexer, getTokenDesc, createLexer } from './lexer';
+import { type Lexer, createLexer } from './lexer';
 import {
   type Location,
   type Token,
@@ -1568,3 +1568,11 @@ function many<T>(
   } while (!expectOptionalToken(lexer, closeKind));
   return nodes;
 }
+
+/**
+ * A helper function to describe a token as a string for debugging
+ */
+function getTokenDesc(token: Token): string {
+  const value = token.value;
+  return value ? `${token.kind} "${value}"` : token.kind;
+}