diff --git a/services/capture/.dockerignore b/services/capture/.dockerignore
new file mode 100644
index 0000000..9e6950c
--- /dev/null
+++ b/services/capture/.dockerignore
@@ -0,0 +1,7 @@
+# Build artifacts that must never enter the Docker build context — a stale
+# CMakeCache.txt from a native bridge build breaks the in-image cmake step
+# ("CMakeCache.txt directory is different / source does not match").
+deltacast-bridge/build/
+node_modules/
+*.bak
+*.log