diff --git a/Dockerfile b/Dockerfile
index 150cb55..479e7bb 100755
--- a/Dockerfile
+++ b/Dockerfile
@@ -47,6 +47,9 @@ RUN apk update && apk upgrade && apk add --no-cache \
 # Copy project files
 COPY . .
 
+# Ensure pkg directory exists and has correct permissions
+RUN mkdir -p pkg && chmod -R 755 pkg
+
 # Copy the provided prebuilt WASM package (ESM)
 # The directory pkg is provided in the build context
 # and already contains sdk_client.js (ES module) and wasm