1 files changed, 2 insertions, 2 deletions

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 68265120ee07..1d3c1003b43a 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -39,8 +39,8 @@ static bool		dont_use_callchains;
 static bool             show_threads;
 static struct perf_read_values  show_threads_values;
 
-static char             default_pretty_printing_style[] = "normal";
-static char             *pretty_printing_style = default_pretty_printing_style;
+static const char       default_pretty_printing_style[] = "normal";
+static const char       *pretty_printing_style = default_pretty_printing_style;
 
 static char             callchain_default_opt[] = "fractal,0.5";