diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 609a115e35cf153187c0fdd3ab5f46b46dc7c40c..226a4ae2f936ccaa228a5fad85bfd5318521ccd5 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -210,6 +210,7 @@ static inline int script_browse(const char *script_opt __maybe_unused)
 
 #define K_LEFT  -1000
 #define K_RIGHT -2000
+#define K_SWITCH_INPUT_DATA -3000
 #endif
 
 #ifdef GTK2_SUPPORT