diff --git a/job.c b/job.c
index 9213eb73..5ddea760 100644
--- a/job.c
+++ b/job.c
@@ -36,6 +36,7 @@ static void	job_read_callback(struct bufferevent *, void *);
 static void	job_write_callback(struct bufferevent *, void *);
 static void	job_error_callback(struct bufferevent *, short, void *);
 
+/* A single job. */
 struct job {
 	enum {
 		JOB_RUNNING,
@@ -61,7 +62,7 @@ struct job {
 };
 
 /* All jobs list. */
-LIST_HEAD(joblist, job) all_jobs = LIST_HEAD_INITIALIZER(all_jobs);
+static LIST_HEAD(joblist, job) all_jobs = LIST_HEAD_INITIALIZER(all_jobs);
 
 /* Start a job running, if it isn't already. */
 struct job *