diff --git a/src/development/vibetype/compose.yaml b/src/development/vibetype/compose.yaml
index bbf4b0dc..17d1e423 100644
--- a/src/development/vibetype/compose.yaml
+++ b/src/development/vibetype/compose.yaml
@@ -52,6 +52,7 @@ services:
       NUXT_PUBLIC_SITE_URL: https://${STACK_DOMAIN}
       NUXT_PUBLIC_TURNSTILE_SITE_KEY: ${VIBETYPE_NUXT_PUBLIC_TURNSTILE_SITE_KEY}
       NUXT_PUBLIC_VIBETYPE_EMAIL_LIMIT24H: ${VIBETYPE_NUXT_PUBLIC_VIBETYPE_EMAIL_LIMIT24H}
+      NUXT_PUBLIC_VIBETYPE_UPLOAD_SIZE_MAX: ${TUSD_MAX_SIZE} # shared with tusd's `-max-size`, so the frontend rejects what tusd would
       PGHOST: postgres
     image: vibetype/vibetype:development
     secrets: