diff --git a/ESPWebThingAdapter.h b/ESPWebThingAdapter.h
index 9df8126..166def6 100644
--- a/ESPWebThingAdapter.h
+++ b/ESPWebThingAdapter.h
@@ -213,7 +213,8 @@ class WebThingAdapter {
     if (colonIndex >= 0) {
       value.remove(colonIndex);
     }
-    if (value == name + ".local" || value == ip || value == "localhost") {
+    if (value.equalsIgnoreCase(name + ".local") || value == ip ||
+        value == "localhost") {
       return true;
     }
     request->send(403);
diff --git a/EthernetWebThingAdapter.h b/EthernetWebThingAdapter.h
index 1cb73ba..d9c80d6 100644
--- a/EthernetWebThingAdapter.h
+++ b/EthernetWebThingAdapter.h
@@ -264,7 +264,7 @@ class WebThingAdapter {
     if (colonIndex >= 0) {
       host.remove(colonIndex);
     }
-    if (host == name + ".local") {
+    if (host.equalsIgnoreCase(name + ".local")) {
       return true;
     }
     if (host == ip) {
diff --git a/SeeedWebThingAdapter.h b/SeeedWebThingAdapter.h
index cb96b78..13c4349 100644
--- a/SeeedWebThingAdapter.h
+++ b/SeeedWebThingAdapter.h
@@ -168,7 +168,8 @@ class WebThingAdapter {
       host.remove(colonIndex);
     }
 
-    if (host == name + ".local" || host == ip || host == "localhost") {
+    if (host.equalsIgnoreCase(name + ".local") || host == ip ||
+        host == "localhost") {
       return true;
     }
 
diff --git a/WiFi101WebThingAdapter.h b/WiFi101WebThingAdapter.h
index f0e4a04..b2a95fc 100644
--- a/WiFi101WebThingAdapter.h
+++ b/WiFi101WebThingAdapter.h
@@ -250,7 +250,7 @@ class WebThingAdapter {
     if (colonIndex >= 0) {
       host.remove(colonIndex);
     }
-    if (host == name + ".local") {
+    if (host.equalsIgnoreCase(name + ".local")) {
       return true;
     }
     if (host == ip) {