diff --git a/build-image/logstash/Dockerfile b/build-image/logstash/Dockerfile
index add20d2..76367f6 100644
--- a/build-image/logstash/Dockerfile
+++ b/build-image/logstash/Dockerfile
@@ -2,4 +2,5 @@ FROM docker.elastic.co/logstash/logstash:7.16.3
 
 COPY log-alert.sh /usr/local/bin/
 
-RUN logstash-plugin install logstash-output-exec
\ No newline at end of file
+RUN logstash-plugin install logstash-output-exec && \
+    chmod +x /usr/local/bin/log-alert.sh
\ No newline at end of file