diff --git a/model/metadata/metadata.go b/model/metadata/metadata.go
index 3d5d64dd1..471c2434c 100644
--- a/model/metadata/metadata.go
+++ b/model/metadata/metadata.go
@@ -120,7 +120,7 @@ func (md Metadata) first(key model.TagName) string {
 
 func float(value string, def ...float64) float64 {
 	v, err := strconv.ParseFloat(value, 64)
-	if err != nil || v == math.Inf(-1) || v == math.Inf(1) {
+	if err != nil || v == math.Inf(-1) || math.IsInf(v, 1) || math.IsNaN(v) {
 		if len(def) > 0 {
 			return def[0]
 		}
diff --git a/model/metadata/metadata_test.go b/model/metadata/metadata_test.go
index f3478ccba..5d9c4a3ed 100644
--- a/model/metadata/metadata_test.go
+++ b/model/metadata/metadata_test.go
@@ -264,6 +264,7 @@ var _ = Describe("Metadata", func() {
 				Entry("1.2dB", "1.2dB", 1.2),
 				Entry("Infinity", "Infinity", 0.0),
 				Entry("Invalid value", "INVALID VALUE", 0.0),
+				Entry("NaN", "NaN", 0.0),
 			)
 			DescribeTable("Peak",
 				func(tagValue string, expected float64) {
@@ -275,6 +276,7 @@ var _ = Describe("Metadata", func() {
 				Entry("Invalid dB suffix", "0.7dB", 1.0),
 				Entry("Infinity", "Infinity", 1.0),
 				Entry("Invalid value", "INVALID VALUE", 1.0),
+				Entry("NaN", "NaN", 1.0),
 			)
 			DescribeTable("getR128GainValue",
 				func(tagValue string, expected float64) {