diff --git a/Dockerfile b/Dockerfile
index a8b0a46..6347c80 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -96,8 +96,8 @@ RUN echo "=== 🚀 ULTRA FINAL VERIFICATION ===" && \
         echo "Verifying $backup:" && \
         tree "/app/$backup" && \
         echo "Testing import from $backup:" && \
-        backup_name="$backup" && \
-        PYTHONPATH="/app/$backup/src" python3 -c "import os; from simpleguardhome.main import app; print(f'Import from {os.environ[\"backup_name\"]} successful')" && \
+        export BACKUP_NAME="$backup" && \
+        PYTHONPATH="/app/$backup/src" python3 -c "import os; from simpleguardhome.main import app; print(f'Import from {os.environ[\"BACKUP_NAME\"]} successful')" && \
         echo "Verifying checksums for $backup:" && \
         cd "/app/$backup" && md5sum -c checksums.md5; \
     done && \