diff --git a/3rd-party-tools/slide-tags/Dockerfile b/3rd-party-tools/slide-tags/Dockerfile
index 061d473e..f38aab87 100644
--- a/3rd-party-tools/slide-tags/Dockerfile
+++ b/3rd-party-tools/slide-tags/Dockerfile
@@ -94,4 +94,4 @@ RUN apt-get update ; \
     # RUN pip install jupyterlab
 
 # Added to copy julia script to docker image
-COPY spatial-count.jl .
+COPY spatial-count.jl /cromwell_root/spatial-count.jl