diff --git a/Artnet/Sender.h b/Artnet/Sender.h
index 69acea6..bb6f6e5 100644
--- a/Artnet/Sender.h
+++ b/Artnet/Sender.h
@@ -89,7 +89,7 @@ class Sender_ {
     void set_key(uint8_t key) {
         art_trigger_ctx.set_key(key);
     }
-    void set_oem(uint8_t subkey) {
+    void set_subkey(uint8_t subkey) {
         art_trigger_ctx.set_subkey(subkey);
     }
     void set_payload(const uint8_t* const payload, uint16_t size) {
diff --git a/README.md b/README.md
index bc2837b..d20bfb2 100644
--- a/README.md
+++ b/README.md
@@ -269,7 +269,7 @@ uint8_t sequence() const;
 // ArtTrigger
 void set_oem(uint16_t oem);
 void set_key(uint8_t key);
-void set_oem(uint8_t subkey);
+void set_subkey(uint8_t subkey);
 void set_payload(const uint8_t* const payload, uint16_t size);
 // send ArtTrigger based on the config above
 void trigger(const String& ip);