diff --git a/swarm/shed/vector_uint64.go b/swarm/shed/vector_uint64.go
index 2f8a0246bc..0926e64f80 100644
--- a/swarm/shed/vector_uint64.go
+++ b/swarm/shed/vector_uint64.go
@@ -68,7 +68,7 @@ func (f Uint64Vector) PutInBatch(batch *leveldb.Batch, i, val uint64) {
 }
 
 // Inc increments a uint64 value in the database.
-// This operation is not goroutine save.
+// This operation is not goroutine safe.
 func (f Uint64Vector) Inc(i uint64) (val uint64, err error) {
 	val, err = f.Get(i)
 	if err != nil {
@@ -84,7 +84,7 @@ func (f Uint64Vector) Inc(i uint64) (val uint64, err error) {
 
 // IncInBatch increments a uint64 value at index i in the batch
 // by retreiving a value from the database, not the same batch.
-// This operation is not goroutine save.
+// This operation is not goroutine safe.
 func (f Uint64Vector) IncInBatch(batch *leveldb.Batch, i uint64) (val uint64, err error) {
 	val, err = f.Get(i)
 	if err != nil {
@@ -100,7 +100,7 @@ func (f Uint64Vector) IncInBatch(batch *leveldb.Batch, i uint64) (val uint64, er
 }
 
 // Dec decrements a uint64 value at index i in the database.
-// This operation is not goroutine save.
+// This operation is not goroutine safe.
 // The field is protected from overflow to a negative value.
 func (f Uint64Vector) Dec(i uint64) (val uint64, err error) {
 	val, err = f.Get(i)
@@ -119,7 +119,7 @@ func (f Uint64Vector) Dec(i uint64) (val uint64, err error) {
 
 // DecInBatch decrements a uint64 value at index i in the batch
 // by retreiving a value from the database, not the same batch.
-// This operation is not goroutine save.
+// This operation is not goroutine safe.
 // The field is protected from overflow to a negative value.
 func (f Uint64Vector) DecInBatch(batch *leveldb.Batch, i uint64) (val uint64, err error) {
 	val, err = f.Get(i)