diff --git a/metrics/runtimehistogram.go b/metrics/runtimehistogram.go
index 7fd2869d88..ec22084d62 100644
--- a/metrics/runtimehistogram.go
+++ b/metrics/runtimehistogram.go
@@ -14,7 +14,7 @@ func getOrRegisterRuntimeHistogram(name string, scale float64, r Registry) *runt
 
 // runtimeHistogram wraps a runtime/metrics histogram.
 type runtimeHistogram struct {
-	v           atomic.Pointer[float64Histogram]
+	v           atomic.Pointer[Float64Histogram]
 	scaleFactor float64
 }