diff --git a/commands.go b/commands.go
index cae0523c19c..ac6aabd82d5 100644
--- a/commands.go
+++ b/commands.go
@@ -198,7 +198,7 @@ func (c *createMeasurementsIfNotExistsCommand) addFieldIfNotExists(measurement,
 }
 
 type dropSeriesCommand struct {
-	Database            string              `json:"datbase"`
+	Database            string              `json:"database"`
 	SeriesByMeasurement map[string][]uint32 `json:"seriesIds"`
 }