diff --git a/Core/Inc/canlog.h b/Core/Inc/canlog.h
index 0ba9cb4..e74f699 100644
--- a/Core/Inc/canlog.h
+++ b/Core/Inc/canlog.h
@@ -30,11 +30,27 @@ extern osMessageQueueId_t xCAN2RxQueue;
 extern osSemaphoreId_t xLEDSemaphoreCAN1;
 extern osSemaphoreId_t xLEDSemaphoreCAN2;
 
+/* USER CODE BEGIN PTD */
+typedef struct {
+    GPIO_TypeDef* port;
+    uint16_t       pin;
+} LED_Config;
+
+typedef struct {
+    uint32_t id;
+    uint8_t  payload[8];
+    uint8_t  dlc;
+    uint8_t  isExtended;
+    //uint32_t timestamp; //Enable TIM2: 42 MHz / (41+1) = 1 MHz → 1 µs tick; 32bit autoreload freerunning
+    // this is for getting timestamps on can messages
+} CanMessage_t;
+
 typedef struct {
     LED_Config *led;
     osSemaphoreId_t semaphore;
     osTimerId_t timer;
 } LEDContext;
+/* USER CODE END PTD */
 
 /**
   * @brief  Initializes the CAN logger modules, OS threads, queues, and hardware.
diff --git a/Core/Inc/main.h b/Core/Inc/main.h
index b31c169..d819a71 100644
--- a/Core/Inc/main.h
+++ b/Core/Inc/main.h
@@ -28,6 +28,7 @@ extern "C" {
 
 /* Includes ------------------------------------------------------------------*/
 #include "stm32f4xx_hal.h"
+#include "canlog.h"
 
 /* Private includes ----------------------------------------------------------*/
 /* USER CODE BEGIN Includes */
diff --git a/Core/Src/main.c b/Core/Src/main.c
index bf17822..6ad4786 100644
--- a/Core/Src/main.c
+++ b/Core/Src/main.c
@@ -27,19 +27,6 @@
 
 /* Private typedef -----------------------------------------------------------*/
 /* USER CODE BEGIN PTD */
-typedef struct {
-    GPIO_TypeDef* port;
-    uint16_t       pin;
-} LED_Config;
-
-typedef struct {
-    uint32_t id;
-    uint8_t  payload[8];
-    uint8_t  dlc;
-    uint8_t  isExtended;
-    //uint32_t timestamp; //Enable TIM2: 42 MHz / (41+1) = 1 MHz → 1 µs tick; 32bit autoreload freerunning
-    // this is for getting timestamps on can messages
-} CanMessage_t;
 /* USER CODE END PTD */
 
 /* Private define ------------------------------------------------------------*/