diff --git a/UNITTESTS/MODULETESTS/features/netsocket/IfaceDnsSocket/test_IfaceDnsSocket.cpp b/UNITTESTS/MODULETESTS/features/netsocket/IfaceDnsSocket/test_IfaceDnsSocket.cpp
index 1280732e3c..68a00ca632 100644
--- a/UNITTESTS/MODULETESTS/features/netsocket/IfaceDnsSocket/test_IfaceDnsSocket.cpp
+++ b/UNITTESTS/MODULETESTS/features/netsocket/IfaceDnsSocket/test_IfaceDnsSocket.cpp
@@ -499,7 +499,7 @@ TEST_F(Test_IfaceDnsSocket, async_cancel)
 
 TEST_F(Test_IfaceDnsSocket, add_server)
 {
-    SocketAddress server_address("1.2.3.4", 8000);
+    SocketAddress server_address("1.2.3.4", 53);
     EXPECT_EQ(NSAPI_ERROR_OK, nsapi_dns_add_server(server_address, NULL));
     EXPECT_EQ(NSAPI_ERROR_OK, nsapi_dns_add_server(server_address, NULL)); // Duplicate add - no error.
 
@@ -533,7 +533,7 @@ TEST_F(Test_IfaceDnsSocket, attempts)
     SocketAddress known_server_address[DNS_SERVER_SIZE];
     for (uint8_t i = DNS_SERVER_SIZE; i > 0; i--) {
         uint8_t bytes[NSAPI_IPv4_SIZE] = {i, i, i, i};
-        known_server_address[i - 1] = SocketAddress(bytes, NSAPI_IPv4);
+        known_server_address[i - 1] = SocketAddress(bytes, NSAPI_IPv4, 53);
         EXPECT_EQ(NSAPI_ERROR_OK, nsapi_dns_add_server(known_server_address[i - 1], NULL));
     }
 
@@ -573,7 +573,7 @@ TEST_F(Test_IfaceDnsSocket, retries_attempts)
     SocketAddress known_server_address[DNS_SERVER_SIZE];
     for (uint8_t i = DNS_SERVER_SIZE; i > 0; i--) {
         uint8_t bytes[NSAPI_IPv4_SIZE] = {i, i, i, i};
-        known_server_address[i - 1] = SocketAddress(bytes, NSAPI_IPv4);
+        known_server_address[i - 1] = SocketAddress(bytes, NSAPI_IPv4, 53);
         EXPECT_EQ(NSAPI_ERROR_OK, nsapi_dns_add_server(known_server_address[i - 1], NULL));
     }
 
diff --git a/features/netsocket/SocketAddress.cpp b/features/netsocket/SocketAddress.cpp
index 0aa5e4ef59..deb7affe88 100644
--- a/features/netsocket/SocketAddress.cpp
+++ b/features/netsocket/SocketAddress.cpp
@@ -182,6 +182,8 @@ bool operator==(const SocketAddress &a, const SocketAddress &b)
         return true;
     } else if (a._addr.version != b._addr.version) {
         return false;
+    } else if (a._port != b._port) {
+        return false;
     } else if (a._addr.version == NSAPI_IPv4) {
         return memcmp(a._addr.bytes, b._addr.bytes, NSAPI_IPv4_BYTES) == 0;
     } else if (a._addr.version == NSAPI_IPv6) {