diff --git a/tsdb/db.go b/tsdb/db.go
index 0678a6ea9..00c1bceed 100644
--- a/tsdb/db.go
+++ b/tsdb/db.go
@@ -318,7 +318,7 @@ type DBStats struct {
 }
 
 // NewDBStats returns a new DBStats object initialized using the
-// the new function from each component.
+// new function from each component.
 func NewDBStats() *DBStats {
 	return &DBStats{
 		Head: NewHeadStats(),
diff --git a/tsdb/encoding/encoding.go b/tsdb/encoding/encoding.go
index c2da86afa..1e17c2e37 100644
--- a/tsdb/encoding/encoding.go
+++ b/tsdb/encoding/encoding.go
@@ -79,7 +79,7 @@ func (e *Encbuf) PutUvarintStr(s string) {
 	e.PutString(s)
 }
 
-// PutUvarintBytes writes a a variable length byte buffer.
+// PutUvarintBytes writes a variable length byte buffer.
 func (e *Encbuf) PutUvarintBytes(b []byte) {
 	e.PutUvarint(len(b))
 	e.PutBytes(b)