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-rw-r--r--src/core/support/histogram.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/core/support/histogram.c b/src/core/support/histogram.c
index ed344b43e8..673affde71 100644
--- a/src/core/support/histogram.c
+++ b/src/core/support/histogram.c
@@ -76,7 +76,7 @@ static size_t bucket_for_unchecked(gpr_histogram *h, double x) {
/* bounds checked version of the above */
static size_t bucket_for(gpr_histogram *h, double x) {
- size_t bucket = bucket_for_unchecked(h, GPR_CLAMP(x, 0, h->max_possible));
+ size_t bucket = bucket_for_unchecked(h, GPR_CLAMP(x, 1.0, h->max_possible));
GPR_ASSERT(bucket < h->num_buckets);
return bucket;
}