1 files changed, 1 insertions, 1 deletions

diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 23742126f47c..7c59c28afcc5 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -37,7 +37,7 @@ double stddev_stats(struct stats *stats)
 {
         double variance, variance_mean;
 
-        if (!stats->n)
+        if (stats->n < 2)
                 return 0.0;
 
         variance = stats->M2 / (stats->n - 1);