2 files changed, 6 insertions, 6 deletions
diff --git a/src/internal/coverage/decodecounter/decodecounterfile.go b/src/internal/coverage/decodecounter/decodecounterfile.go
index d1ae5e8386..fce060aaba 100644
--- a/src/internal/coverage/decodecounter/decodecounterfile.go
+++ b/src/internal/coverage/decodecounter/decodecounterfile.go
@@ -79,7 +79,7 @@ func checkMagic(v [4]byte) bool {
 
 func (cdr *CounterDataReader) readFooter() error {
 	ftrSize := int64(unsafe.Sizeof(cdr.ftr))
-	if _, err := cdr.mr.Seek(-ftrSize, os.SEEK_END); err != nil {
+	if _, err := cdr.mr.Seek(-ftrSize, io.SeekEnd); err != nil {
 		return err
 	}
 	if err := binary.Read(cdr.mr, binary.LittleEndian, &cdr.ftr); err != nil {
@@ -115,13 +115,13 @@ func (cdr *CounterDataReader) readSegmentPreamble() error {
 		return err
 	}
 	// Seek past any padding to bring us up to a 4-byte boundary.
-	if of, err := cdr.mr.Seek(0, os.SEEK_CUR); err != nil {
+	if of, err := cdr.mr.Seek(0, io.SeekCurrent); err != nil {
 		return err
 	} else {
 		rem := of % 4
 		if rem != 0 {
 			pad := 4 - rem
-			if _, err := cdr.mr.Seek(pad, os.SEEK_CUR); err != nil {
+			if _, err := cdr.mr.Seek(pad, io.SeekCurrent); err != nil {
 				return err
 			}
 		}
@@ -248,7 +248,7 @@ func (cdr *CounterDataReader) BeginNextSegment() (bool, error) {
 	cdr.fcnCount = 0
 	// Seek past footer from last segment.
 	ftrSize := int64(unsafe.Sizeof(cdr.ftr))
-	if _, err := cdr.mr.Seek(ftrSize, os.SEEK_CUR); err != nil {
+	if _, err := cdr.mr.Seek(ftrSize, io.SeekCurrent); err != nil {
 		return false, err
 	}
 	// Read preamble for this segment.
diff --git a/src/internal/coverage/test/counter_test.go b/src/internal/coverage/test/counter_test.go
index 09ce235e2a..3fc111ea12 100644
--- a/src/internal/coverage/test/counter_test.go
+++ b/src/internal/coverage/test/counter_test.go
@@ -9,6 +9,7 @@ import (
 	"internal/coverage"
 	"internal/coverage/decodecounter"
 	"internal/coverage/encodecounter"
+	"io"
 	"os"
 	"path/filepath"
 	"testing"
@@ -208,8 +209,7 @@ func TestCounterDataAppendSegment(t *testing.T) {
 	}
 
 	for sidx := 0; sidx < int(ns); sidx++ {
-
-		if off, err := inf.Seek(0, os.SEEK_CUR); err != nil {
+		if off, err := inf.Seek(0, io.SeekCurrent); err != nil {
 			t.Fatalf("Seek failed: %v", err)
 		} else {
 			t.Logf("sidx=%d off=%d\n", sidx, off)