diff --git a/generate_Dockerfile.sh b/generate_Dockerfile.sh
index 2ced685..09865fe 100755
--- a/generate_Dockerfile.sh
+++ b/generate_Dockerfile.sh
@@ -30,6 +30,7 @@ cp $STACKS_DIR/base-notebook/start.sh .build/
 cp $STACKS_DIR/base-notebook/start-notebook.sh .build/
 cp $STACKS_DIR/base-notebook/start-singleuser.sh .build/
 chmod 755 .build/*
+chmod -R 755 data/
 
 echo "
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