diff --git a/build-and-test.sh b/build-and-test.sh
index c0fba7c..3e8b606 100755
--- a/build-and-test.sh
+++ b/build-and-test.sh
@@ -10,4 +10,4 @@ cd python
 docker build . --build-arg VERSION=${VERSION} -t developmentseed/geolambda:${VERSION}-python
 docker run -v ${PWD}:/home/geolambda -t developmentseed/geolambda:${VERSION}-python package-python.sh
 
-docker run --rm -v ${PWD}/lambda:/var/task -v ${PWD}/../lambda:/opt lambci/lambda:python3.7 lambda_function.lambda_handler '{}'
+docker run --rm -e PROJ_LIB=/opt/share/proj -v ${PWD}/lambda:/var/task -v ${PWD}/../lambda:/opt lambci/lambda:python3.7 lambda_function.lambda_handler '{}'