diff --git a/tools/perf/ui/gtk/browser.c b/tools/perf/ui/gtk/browser.c
index a1a83de..5eafd9b 100644
--- a/tools/perf/ui/gtk/browser.c
+++ b/tools/perf/ui/gtk/browser.c
@@ -9,23 +9,23 @@
 
 #define MAX_COLUMNS			32
 
-void perf_gtk_setup_browser(bool fallback_to_pager __used)
+void perf_gtk__setup_browser(bool fallback_to_pager __used)
 {
 	gtk_init(NULL, NULL);
 }
 
-void perf_gtk_exit_browser(bool wait_for_ok __used)
+void perf_gtk__exit_browser(bool wait_for_ok __used)
 {
 	gtk_main_quit();
 }
 
-static void perf_gtk_signal(int sig)
+static void perf_gtk__signal(int sig)
 {
 	psignal(sig, "perf");
 	gtk_main_quit();
 }
 
-static void perf_gtk_resize_window(GtkWidget *window)
+static void perf_gtk__resize_window(GtkWidget *window)
 {
 	GdkRectangle rect;
 	GdkScreen *screen;
@@ -45,7 +45,7 @@
 	gtk_window_resize(GTK_WINDOW(window), width, height);
 }
 
-static void perf_gtk_show_hists(GtkWidget *window, struct hists *hists)
+static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists)
 {
 	GType col_types[MAX_COLUMNS];
 	GtkCellRenderer *renderer;
@@ -141,11 +141,11 @@
 	GtkWidget *notebook;
 	GtkWidget *window;
 
-	signal(SIGSEGV, perf_gtk_signal);
-	signal(SIGFPE,  perf_gtk_signal);
-	signal(SIGINT,  perf_gtk_signal);
-	signal(SIGQUIT, perf_gtk_signal);
-	signal(SIGTERM, perf_gtk_signal);
+	signal(SIGSEGV, perf_gtk__signal);
+	signal(SIGFPE,  perf_gtk__signal);
+	signal(SIGINT,  perf_gtk__signal);
+	signal(SIGQUIT, perf_gtk__signal);
+	signal(SIGTERM, perf_gtk__signal);
 
 	window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 
@@ -167,7 +167,7 @@
 							GTK_POLICY_AUTOMATIC,
 							GTK_POLICY_AUTOMATIC);
 
-		perf_gtk_show_hists(scrolled_window, hists);
+		perf_gtk__show_hists(scrolled_window, hists);
 
 		tab_label = gtk_label_new(evname);
 
@@ -178,7 +178,7 @@
 
 	gtk_widget_show_all(window);
 
-	perf_gtk_resize_window(window);
+	perf_gtk__resize_window(window);
 
 	gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);