1 files changed, 2 insertions, 2 deletions

diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 48b8e5759af9..6e8490716408 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -55,7 +55,7 @@ struct dso {
         char             name[0];
 };
 
-const char *sym_hist_filter;
+extern const char *sym_hist_filter;
 
 typedef int (*symbol_filter_t)(struct dso *self, struct symbol *sym);
 
@@ -87,6 +87,6 @@ extern struct list_head dsos;
 extern struct dso *kernel_dso;
 extern struct dso *vdso;
 extern struct dso *hypervisor_dso;
-extern char *vmlinux;
+extern const char *vmlinux_name;
 extern int   modules;
 #endif /* _PERF_SYMBOL_ */