diff --git a/embassy-stm32/src/can/frame.rs b/embassy-stm32/src/can/frame.rs
index a4d5a9752..0fbab053b 100644
--- a/embassy-stm32/src/can/frame.rs
+++ b/embassy-stm32/src/can/frame.rs
@@ -212,8 +212,8 @@ impl Frame {
         &self.data.raw()[..self.can_header.len as usize]
     }
 
-    /// Get reference to underlying 8-byte raw data buffer
-    pub(crate) fn raw_data(&self) -> &[u8] {
+    /// Get reference to underlying 8-byte raw data buffer, some bytes on the tail might be undefined.
+    pub fn raw_data(&self) -> &[u8] {
         self.data.raw()
     }