diff --git a/tools/perf/builtin.h b/tools/perf/builtin.h
index 26669bf9129c3faf9a9311358b1bbe688dc5e7cc..d4d19fe3d050a86e2f0d868e1729a6c5fbb95cb8 100644
--- a/tools/perf/builtin.h
+++ b/tools/perf/builtin.h
@@ -2,16 +2,12 @@
 #define BUILTIN_H
 
 #include "util/util.h"
-#include "util/strbuf.h"
 
 extern const char perf_usage_string[];
 extern const char perf_more_info_string[];
 
 void list_common_cmds_help(void);
 const char *help_unknown_cmd(const char *cmd);
-void prune_packed_objects(int);
-int read_line_with_nul(char *buf, int size, FILE *file);
-int check_pager_config(const char *cmd);
 
 int cmd_annotate(int argc, const char **argv);
 int cmd_bench(int argc, const char **argv);
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 356588982d083c992d85a1eee1df51528501aab8..0b2cad0fb3f9e2bb5150f45384859eee1a968121 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -91,7 +91,7 @@ static int pager_command_config(const char *var, const char *value, void *data)
 }
 
 /* returns 0 for "no pager", 1 for "use pager", and -1 for "not specified" */
-int check_pager_config(const char *cmd)
+static int check_pager_config(const char *cmd)
 {
 	int err;
 	struct pager_config c;