diff --git a/examples/RadioLibExamples/SX1278/SX1278_Transmit_Interrupt/utilities.h b/examples/RadioLibExamples/SX1278/SX1278_Transmit_Interrupt/utilities.h
index 94dc2d5..898fe90 100644
--- a/examples/RadioLibExamples/SX1278/SX1278_Transmit_Interrupt/utilities.h
+++ b/examples/RadioLibExamples/SX1278/SX1278_Transmit_Interrupt/utilities.h
@@ -10,7 +10,7 @@
 // #define LILYGO_T3_V1_3
 // #define LILYGO_T3_V1_6
 // #define LILYGO_T3_V2_0
-
+#define LILYGO_T3_S3_E_PAPER_V_1_0
 
 /*
 * The default program uses 433MHz,