diff --git a/docker/user_demos.sh b/docker/user_demos.sh
index 79186563..d6454049 100755
--- a/docker/user_demos.sh
+++ b/docker/user_demos.sh
@@ -25,7 +25,11 @@ if [ "$PYTHON" = "miniconda" ]; then
     # do not install CIL from conda if BUILD_CIL is set
     if test "${BUILD_CIL:-0}" != 0; then
       # delete CIL package from the environment file
+      echo "Deleting CIL from the environment file BUILD_CIL is set to >${BUILD_CIL}<"
       sed -r -i -e '/^\s*- (cil).*/d' environment-sirf.yml
+      cat environment-sirf.yml
+    else
+      echo "Not deleting CIL from the environment file BUILD_CIL is set to >${BUILD_CIL}<"
     fi
     conda env update --file environment-sirf.yml -v
   else