diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c
index c87a98c..caa554b 100644
--- a/tools/perf/ui/gtk/hists.c
+++ b/tools/perf/ui/gtk/hists.c
@@ -170,7 +170,7 @@
 		fmt->header(&hpp);
 
 		gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view),
-							    -1, s,
+							    -1, ltrim(s),
 							    renderer, "markup",
 							    col_idx++, NULL);
 	}