diff --git a/frontend/Dockerfile b/frontend/Dockerfile
index f89869b..7fd3dd2 100644
--- a/frontend/Dockerfile
+++ b/frontend/Dockerfile
@@ -13,6 +13,9 @@ RUN npm ci
 # Copy entire project
 COPY . .
 
+# Set it as an environment variable for the build process
+ENV NEXT_PUBLIC_HCAPTCHA_SITE_KEY=${HCAPTCHA_SITE_KEY}
+
 # Build the Next.js app
 RUN npm run build