diff --git a/src/runtime/metrics/value.go b/src/runtime/metrics/value.go
index 0b056b4ea8c..61e8a192a30 100644
--- a/src/runtime/metrics/value.go
+++ b/src/runtime/metrics/value.go
@@ -63,7 +63,7 @@ func (v Value) Float64() float64 {
 // If v.Kind() != KindFloat64Histogram, this method panics.
 func (v Value) Float64Histogram() *Float64Histogram {
 	if v.kind != KindFloat64Histogram {
-		panic("called Float64 on non-float64 metric value")
+		panic("called Float64Histogram on non-Float64Histogram metric value")
 	}
 	return (*Float64Histogram)(v.pointer)
 }