diff --git a/src/platform/nxp/rt/rt1060/BUILD.gn b/src/platform/nxp/rt/rt1060/BUILD.gn
index 390feccadc0a45..1e3d8f1e1e6ba9 100644
--- a/src/platform/nxp/rt/rt1060/BUILD.gn
+++ b/src/platform/nxp/rt/rt1060/BUILD.gn
@@ -148,7 +148,6 @@ static_library("nxp_platform") {
     if (chip_mdns == "platform") {
       if (chip_enable_wifi) {
         sources += [
-          "../../../OpenThread/DnssdImpl.cpp",
           "../../../OpenThread/OpenThreadDnssdImpl.cpp",
           "../../../OpenThread/OpenThreadDnssdImpl.h",
           "../../common/DnssdImpl.cpp",
diff --git a/src/platform/nxp/rt/rt1170/BUILD.gn b/src/platform/nxp/rt/rt1170/BUILD.gn
index dd087f031fbe22..4bfd1034a78f21 100644
--- a/src/platform/nxp/rt/rt1170/BUILD.gn
+++ b/src/platform/nxp/rt/rt1170/BUILD.gn
@@ -151,7 +151,6 @@ static_library("nxp_platform") {
     if (chip_mdns == "platform") {
       if (chip_enable_wifi) {
         sources += [
-          "../../../OpenThread/DnssdImpl.cpp",
           "../../../OpenThread/OpenThreadDnssdImpl.cpp",
           "../../../OpenThread/OpenThreadDnssdImpl.h",
           "../../common/DnssdImpl.cpp",