diff --git a/.github/workflows/build-check-sdk.yaml b/.github/workflows/build-check-sdk.yaml
index d63c874..586e0dd 100644
--- a/.github/workflows/build-check-sdk.yaml
+++ b/.github/workflows/build-check-sdk.yaml
@@ -9,4 +9,4 @@ jobs:
     - name: Setup SDK
       run: source ./.env && docker pull servostar/gemstone:sdk-"$SDK"
     - name: Compile
-      run: source ./.env && sh run-docker-build.sh
+      run: set -a && source ./.env && sh run-docker-build.sh
diff --git a/Dockerfile b/Dockerfile
index cf32591..dd774f4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,6 +10,6 @@ COPY --chown=lorang tests /home/lorang/tests
 COPY --chown=lorang CMakeLists.txt /home/lorang/
 COPY --chown=lorang run-check-test.sh /home/lorang/
 COPY --chown=lorang .env /home/lorang/
-COPY --chown=lorang run-docker-build /home/lorang/
+COPY --chown=lorang run-docker-build.sh /home/lorang/
 
 RUN cmake .
diff --git a/run-docker-build.sh b/run-docker-build.sh
index 2ad358a..2d6f99f 100755
--- a/run-docker-build.sh
+++ b/run-docker-build.sh
@@ -11,11 +11,16 @@ echo "+--------------------------------------+"
 if [ -z "$SDK" ]; then
   echo "no SDK specified, sourcing .env"
   source ./.env
-fi
 
-if [ -z "$SDK" ]; then
-  echo "no SDK specified"
-  exit 1
+  if [ -z "$SDK" ]; then
+    echo "no SDK specified"
+    exit 1
+  else
+    echo "using SDK $SDK"
+  fi
+
+else
+  echo "using SDK $SDK"
 fi
 
 echo "+--------------------------------------+"