diff --git a/src/can_buffer.c b/src/can_buffer.c
--- a/src/can_buffer.c
+++ b/src/can_buffer.c
@@ -20,7 +20,7 @@ CanBufferStatus can_buffer_add(volatile 
 
 volatile CanRxMsgTypeDef* can_buffer_remove(volatile CanBuffer *buffer)
 {
-    volatile CanRxMsgTypeDef* msg;
+    volatile CanRxMsgTypeDef* msg = NULL;
     if (buffer->count > 0) {
         msg = &buffer->data[buffer->tail];
         buffer->tail = (buffer->tail + 1) % CAN_BUFFER_SIZE;