diff --git a/hooks/build b/hooks/build
index 670dcbc..4ff514d 100644
--- a/hooks/build
+++ b/hooks/build
@@ -1,6 +1,6 @@
 #!/bin/bash
 if [[ "$DOCKER_TAG" == *"runtime"* ]]; then
-     docker build --target standards-runtime --build-arg PHP_VERSION="$(echo $DOCKER_TAG | sed 's/-experimental//g' | sed 's/-runtime//g')" -f $DOCKERFILE_PATH -t $IMAGE_NAME .
+     docker build --target standards-runtime --build-arg PHP_VERSION="$(echo $DOCKER_TAG | sed 's/-experimental//g' | sed 's/-runtime//g')" --build-arg ALPINE_VERSION="${ALPINE_VERSION:-}" -f $DOCKERFILE_PATH -t $IMAGE_NAME .
 else
-     docker build --build-arg PHP_VERSION="$(echo $DOCKER_TAG | sed 's/-experimental//g')" -f $DOCKERFILE_PATH -t $IMAGE_NAME .
+     docker build --build-arg PHP_VERSION="$(echo $DOCKER_TAG | sed 's/-experimental//g')" --build-arg ALPINE_VERSION="${ALPINE_VERSION:-}" -f $DOCKERFILE_PATH -t $IMAGE_NAME .
 fi