2 files changed, 6 insertions, 6 deletions
diff --git a/src/encoding/binary/varint.go b/src/encoding/binary/varint.go
index 18e1ff1511..7b14fb2b63 100644
--- a/src/encoding/binary/varint.go
+++ b/src/encoding/binary/varint.go
@@ -123,7 +123,7 @@ func Varint(buf []byte) (int64, int) {
 	return x, n
 }
 
-var overflow = errors.New("binary: varint overflows a 64-bit integer")
+var errOverflow = errors.New("binary: varint overflows a 64-bit integer")
 
 // ReadUvarint reads an encoded unsigned integer from r and returns it as a uint64.
 // The error is EOF only if no bytes were read.
@@ -142,14 +142,14 @@ func ReadUvarint(r io.ByteReader) (uint64, error) {
 		}
 		if b < 0x80 {
 			if i == MaxVarintLen64-1 && b > 1 {
-				return x, overflow
+				return x, errOverflow
 			}
 			return x | uint64(b)<<s, nil
 		}
 		x |= uint64(b&0x7f) << s
 		s += 7
 	}
-	return x, overflow
+	return x, errOverflow
 }
 
 // ReadVarint reads an encoded signed integer from r and returns it as an int64.
diff --git a/src/encoding/binary/varint_test.go b/src/encoding/binary/varint_test.go
index a3caea8a43..5c3ea318c3 100644
--- a/src/encoding/binary/varint_test.go
+++ b/src/encoding/binary/varint_test.go
@@ -212,9 +212,9 @@ func testOverflow(t *testing.T, buf []byte, x0 uint64, n0 int, err0 error) {
 }
 
 func TestOverflow(t *testing.T) {
-	testOverflow(t, []byte{0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x2}, 0, -10, overflow)
-	testOverflow(t, []byte{0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x1, 0, 0}, 0, -11, overflow)
-	testOverflow(t, []byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}, 1<<64-1, -11, overflow) // 11 bytes, should overflow
+	testOverflow(t, []byte{0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x2}, 0, -10, errOverflow)
+	testOverflow(t, []byte{0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x1, 0, 0}, 0, -11, errOverflow)
+	testOverflow(t, []byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}, 1<<64-1, -11, errOverflow) // 11 bytes, should overflow
 }
 
 func TestNonCanonicalZero(t *testing.T) {