diff --git a/client/extract-translatable-strings.js b/client/extract-translatable-strings.js
index b889e9a499..85bc01b101 100644
--- a/client/extract-translatable-strings.js
+++ b/client/extract-translatable-strings.js
@@ -24,7 +24,7 @@ extractor
       },
     }),
   ])
-  .parseFilesGlob('./src/**/*.@(ts|js|tsx)');
+  .parseFilesGlob('./src/**/!(*.test).@(ts|js|tsx)');
 
 extractor.savePotFile('../wagtail/admin/locale/en/LC_MESSAGES/djangojs.po');