diff --git a/candidate_base.go b/candidate_base.go
index 1a60899..e1fbfe1 100644
--- a/candidate_base.go
+++ b/candidate_base.go
@@ -460,6 +460,13 @@ func (c *candidateBase) copy() (Candidate, error) {
 	return UnmarshalCandidate(c.Marshal())
 }
 
+func removeZoneIDFromAddress(addr string) string {
+	if i := strings.Index(addr, "%"); i != -1 {
+		return addr[:i]
+	}
+	return addr
+}
+
 // Marshal returns the string representation of the ICECandidate
 func (c *candidateBase) Marshal() string {
 	val := c.Foundation()
@@ -472,7 +479,7 @@ func (c *candidateBase) Marshal() string {
 		c.Component(),
 		c.NetworkType().NetworkShort(),
 		c.Priority(),
-		c.Address(),
+		removeZoneIDFromAddress(c.Address()),
 		c.Port(),
 		c.Type())
 
@@ -522,7 +529,7 @@ func UnmarshalCandidate(raw string) (Candidate, error) {
 	priority := uint32(priorityRaw)
 
 	// Address
-	address := split[4]
+	address := removeZoneIDFromAddress(split[4])
 
 	// Port
 	rawPort, err := strconv.ParseUint(split[5], 10, 16)
diff --git a/candidate_test.go b/candidate_test.go
index 04bb17c..aecea11 100644
--- a/candidate_test.go
+++ b/candidate_test.go
@@ -392,7 +392,7 @@ func TestCandidateMarshal(t *testing.T) {
 
 			require.NoError(t, err)
 
-			require.True(t, test.candidate.Equal(actualCandidate))
+			require.Truef(t, test.candidate.Equal(actualCandidate), "%s != %s", test.candidate.String(), actualCandidate.String())
 			require.Equal(t, test.marshaled, actualCandidate.Marshal())
 		})
 	}
@@ -437,3 +437,32 @@ func TestCandidateWriteTo(t *testing.T) {
 	_, err = c1.writeTo([]byte("test"), c2)
 	require.Error(t, err, "writing to closed conn")
 }
+
+func TestMarshalUnmarshalCandidateWithZoneID(t *testing.T) {
+	candidateWithZoneID := mustCandidateHost(&CandidateHostConfig{
+		Network:    NetworkTypeUDP6.String(),
+		Address:    "fcd9:e3b8:12ce:9fc5:74a5:c6bb:d8b:e08a%Local Connection",
+		Port:       53987,
+		Priority:   500,
+		Foundation: "750",
+	})
+	candidateStr := "750 0 udp 500 fcd9:e3b8:12ce:9fc5:74a5:c6bb:d8b:e08a 53987 typ host"
+	require.Equal(t, candidateStr, candidateWithZoneID.Marshal())
+
+	candidate := mustCandidateHost(&CandidateHostConfig{
+		Network:    NetworkTypeUDP6.String(),
+		Address:    "fcd9:e3b8:12ce:9fc5:74a5:c6bb:d8b:e08a",
+		Port:       53987,
+		Priority:   500,
+		Foundation: "750",
+	})
+	candidateWithZoneIDStr := "750 0 udp 500 fcd9:e3b8:12ce:9fc5:74a5:c6bb:d8b:e08a%eth0 53987 typ host"
+	candidate2, err := UnmarshalCandidate(candidateWithZoneIDStr)
+	require.NoError(t, err)
+	require.Truef(t, candidate.Equal(candidate2), "%s != %s", candidate.String(), candidate2.String())
+
+	candidateWithZoneIDStr2 := "750 0 udp 500 fcd9:e3b8:12ce:9fc5:74a5:c6bb:d8b:e08a%eth0%eth1 53987 typ host"
+	candidate2, err = UnmarshalCandidate(candidateWithZoneIDStr2)
+	require.NoError(t, err)
+	require.Truef(t, candidate.Equal(candidate2), "%s != %s", candidate.String(), candidate2.String())
+}