diff --git a/wled00/pin_manager.h b/wled00/pin_manager.h
index 23d8d951..b84f1043 100644
--- a/wled00/pin_manager.h
+++ b/wled00/pin_manager.h
@@ -75,8 +75,8 @@ class PinManagerClass {
   PinOwner ownerTag[WLED_NUM_PINS] = { PinOwner::None };
   PinOwner ownerConflict[WLED_NUM_PINS] = { PinOwner::None }; // WLEDMM: record pin alloc conflicts
   #else
-  #define WLED_NUM_PINS 50
-  uint8_t pinAlloc[7] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; //WLEDMM bugfix - 56bit, 1 bit per pin, we use 50 bits on -S3
+  #define WLED_NUM_PINS 56 // S3 has 49 gpio, P4 has 55 gpio
+  uint8_t pinAlloc[8] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; //WLEDMM bugfix - 64bit, 1 bit per pin, we use 50 bits on -S3, 55 on -P4
   uint8_t ledcAlloc[2] = {0x00, 0x00}; //16 LEDC channels
   PinOwner ownerTag[WLED_NUM_PINS] = { PinOwner::None }; // new MCU's have up to 50 GPIO
   PinOwner ownerConflict[WLED_NUM_PINS] = { PinOwner::None }; // WLEDMM: record pin alloc conflicts