diff --git a/Dockerfile_s b/Dockerfile_s
index 56b3f44..00a7e16 100644
--- a/Dockerfile_s
+++ b/Dockerfile_s
@@ -1,9 +1,10 @@
 FROM alpine:latest
 COPY oneget /
 RUN set -x; \
-    chmod +x /oneget
+    chmod +x /oneget; \
+    apk add curl
 ENV ONEGET_HTTP_SERVER_PORT=8080
 ENV ONEGET_ENABLE_HTTP_SERVER=true
 HEALTHCHECK --interval=1m --timeout=3s \
-  CMD nc -vz -w 2 localhost $ONEGET_HTTP_SERVER_PORT || exit 1'
+  CMD nc -vz -w 2 localhost $ONEGET_HTTP_SERVER_PORT || exit 1
 ENTRYPOINT ["/oneget"]
\ No newline at end of file