diff --git a/ping.go b/ping.go
index 127f0c5..b2c96ba 100644
--- a/ping.go
+++ b/ping.go
@@ -472,8 +472,7 @@ func (p *Pinger) recvICMP(
 		case <-p.done:
 			return nil
 		default:
-			// ICMP messages have an 8-byte header.
-			bytes := make([]byte, p.Size+8)
+			bytes := make([]byte, p.getMessageLength())
 			if err := conn.SetReadDeadline(time.Now().Add(time.Millisecond * 100)); err != nil {
 				return err
 			}
diff --git a/utils_other.go b/utils_other.go
new file mode 100644
index 0000000..cd73ab2
--- /dev/null
+++ b/utils_other.go
@@ -0,0 +1,8 @@
+// +build !windows
+
+package ping
+
+// Returns the length of an ICMP message.
+func (p *Pinger) getMessageLength() int {
+	return p.Size + 8
+}
diff --git a/utils_windows.go b/utils_windows.go
new file mode 100644
index 0000000..2861f64
--- /dev/null
+++ b/utils_windows.go
@@ -0,0 +1,16 @@
+// +build windows
+
+package ping
+
+import (
+	"golang.org/x/net/ipv4"
+	"golang.org/x/net/ipv6"
+)
+
+// Returns the length of an ICMP message, plus the IP packet header.
+func (p *Pinger) getMessageLength() int {
+	if p.ipv4 {
+		return p.Size + 8 + ipv4.HeaderLen
+	}
+	return p.Size + 8 + ipv6.HeaderLen
+}