diff --git a/server/influxdb.go b/server/influxdb.go
index 810ba6f60..027ca00d5 100644
--- a/server/influxdb.go
+++ b/server/influxdb.go
@@ -137,7 +137,8 @@ func (m *Influx) Run(in <-chan core.Param) {
 
 	// add points to batch for async writing
 	for param := range in {
-		if _, ok := param.Val.(float64); !ok {
+		// allow nil value to be written as series gaps
+		if _, ok := param.Val.(float64); param.Val != nil && !ok {
 			continue
 		}