diff --git a/compile/build-alpine/Dockerfile b/compile/build-alpine/Dockerfile
index 78ccf38c..8d93b233 100644
--- a/compile/build-alpine/Dockerfile
+++ b/compile/build-alpine/Dockerfile
@@ -8,6 +8,7 @@ RUN apk update; apk add gawk;
 ENV TARGETPATH=/usr
 ## build.sh: split multi steps, to speed up
 COPY src/tigervnc /build
+RUN chmod +x /build/*.sh
 # https://blog.csdn.net/sodaloveer/article/details/127727729 #wait并行
 RUN sh /build/build.sh cache
 RUN sh /build/build.sh b_deps