diff --git a/Dockerfile b/Dockerfile
index ad085f6..010b7ff 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -17,6 +17,6 @@ RUN make
 FROM postgres:$POSTGRES_VERSION-bookworm
 ARG POSTGRES_VERSION
 
-RUN apt-get update && apt-get -y install postgresql-$POSTGRES_VERSION-postgis-3
+RUN apt-get update && apt-get -y install postgresql-$POSTGRES_VERSION-postgis-3 && rm -rf /var/lib/apt/lists/*
 
 COPY --from=0 /build/ensure_role_and_database_exists.so /usr/lib/postgresql/$POSTGRES_VERSION/lib/ensure_role_and_database_exists.so
diff --git a/ensure_role_and_database_exists.c b/ensure_role_and_database_exists.c
index 92ca62a..b48662a 100644
--- a/ensure_role_and_database_exists.c
+++ b/ensure_role_and_database_exists.c
@@ -53,7 +53,7 @@ static void ensure_role_and_database_exists(Port *port, int status) {
                  port->user_name,
                  postgres_user,
                  postgres_user
-    ) < 0) {
+        ) < 0) {
         ereport(ERROR, errmsg("failed to allocate command string"));
     }
 
@@ -69,7 +69,7 @@ static void ensure_role_and_database_exists(Port *port, int status) {
                  port->database_name,
                  postgres_user,
                  postgres_user
-    ) < 0) {
+        ) < 0) {
         ereport(ERROR, errmsg("failed to allocate command string"));
     }