diff --git a/sequencer.c b/sequencer.c
index f86f116a153..ce8a59f576a 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -17,7 +17,7 @@
 
 #define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION"
 
-void remove_sequencer_state(void)
+static void remove_sequencer_state(void)
 {
 	struct strbuf seq_dir = STRBUF_INIT;
 
diff --git a/sequencer.h b/sequencer.h
index d8494201e0a..99eb7fa0904 100644
--- a/sequencer.h
+++ b/sequencer.h
@@ -44,9 +44,6 @@ struct replay_opts {
 	struct rev_info *revs;
 };
 
-/* Removes SEQ_DIR. */
-extern void remove_sequencer_state(void);
-
 int sequencer_pick_revisions(struct replay_opts *opts);
 
 #endif