diff --git a/.dockerignore b/.dockerignore
index 870d5f1..86ed7c8 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,5 +1,4 @@
-# Build outputs
-output/
+# Build intermediate outputs (but keep output/ for test.sh)
 *.o
 *.a
 *.so
@@ -30,10 +29,12 @@ Thumbs.db
 docs/_build/
 *.pdf
 
-# Test outputs
+# Test outputs (but keep testing/ directory)
 test_file.bin
 downloaded_*.bin
 *.downloaded*
+testing/*.downloaded*
+testing/test_file.bin
 
 # Docker files
 .dockerignore