diff --git a/packages/cli/src/testUtils/matchFolderTransform.ts b/packages/cli/src/testUtils/matchFolderTransform.ts
index c17b14822db6..03bdb766c7c3 100644
--- a/packages/cli/src/testUtils/matchFolderTransform.ts
+++ b/packages/cli/src/testUtils/matchFolderTransform.ts
@@ -21,7 +21,7 @@ type Options = {
 
 type MatchFolderTransformFunction = (
   transformFunctionOrName: (() => any) | string,
-  fixtureName: string,
+  fixtureName?: string,
   options?: Options
 ) => Promise<void>
 
@@ -53,7 +53,7 @@ export const matchFolderTransform: MatchFolderTransformFunction = async (
   const fixtureFolder = path.join(
     testPath,
     '../../__testfixtures__',
-    fixtureName
+    fixtureName || ''
   )
 
   const fixtureInputDir = path.join(fixtureFolder, 'input')
diff --git a/packages/codemods/src/codemods/v7.x.x/updateGraphQLConfig/__tests__/updateGraphqlConfig.test.ts b/packages/codemods/src/codemods/v7.x.x/updateGraphQLConfig/__tests__/updateGraphqlConfig.test.ts
index ec34b6dca74c..a4de393e12a3 100644
--- a/packages/codemods/src/codemods/v7.x.x/updateGraphQLConfig/__tests__/updateGraphqlConfig.test.ts
+++ b/packages/codemods/src/codemods/v7.x.x/updateGraphQLConfig/__tests__/updateGraphqlConfig.test.ts
@@ -2,6 +2,6 @@ import { updateGraphqlConfig } from '../updateGraphqlConfig'
 
 describe('updateGraphQLConfig', () => {
   it('Replaces the JS FatalErrorPage with a new version that includes development info', async () => {
-    await matchFolderTransform(updateGraphqlConfig, 'javascript')
+    await matchFolderTransform(updateGraphqlConfig)
   })
 })
diff --git a/packages/codemods/src/testUtils/matchFolderTransform.ts b/packages/codemods/src/testUtils/matchFolderTransform.ts
index a56298c6ae84..8c7a77cbf2ef 100644
--- a/packages/codemods/src/testUtils/matchFolderTransform.ts
+++ b/packages/codemods/src/testUtils/matchFolderTransform.ts
@@ -19,7 +19,7 @@ type Options = {
 
 type MatchFolderTransformFunction = (
   transformFunctionOrName: (() => any) | string,
-  fixtureName: string,
+  fixtureName?: string,
   options?: Options
 ) => Promise<void>
 
@@ -47,7 +47,7 @@ export const matchFolderTransform: MatchFolderTransformFunction = async (
   const fixtureFolder = path.join(
     testPath,
     '../../__testfixtures__',
-    fixtureName
+    fixtureName || ''
   )
 
   const fixtureInputDir = path.join(fixtureFolder, 'input')