diff --git a/docker-compose.yml b/docker-compose.yml
index b7b1d18..e62a905 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -5,7 +5,7 @@ services:
     volumes:
       - postgres_ssl:/certs
       - ./postgres/ssl/generate-certs.sh:/generate-certs.sh:ro
-    entrypoint: ["/bin/sh", "-c", "apk add --no-cache openssl > /dev/null && /generate-certs.sh /certs"]
+    entrypoint: ["/bin/sh", "-c", "apk add --no-cache openssl > /dev/null && sh /generate-certs.sh /certs"]
     restart: "no"
 
   postgres:
diff --git a/postgres/ssl/generate-certs.sh b/postgres/ssl/generate-certs.sh
old mode 100644
new mode 100755