1 files changed, 1 insertions, 1 deletions

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index f75c5f62401c..9a71c94f057a 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -662,7 +662,7 @@ size_t hists__fprintf(struct hists *self, struct hists *pair,
         long displacement = 0;
         unsigned int width;
         const char *sep = symbol_conf.field_sep;
-        char *col_width = symbol_conf.col_width_list_str;
+        const char *col_width = symbol_conf.col_width_list_str;
 
         init_rem_hits();