diff --git a/core/embed/extmod/modtrezorcrypto/modtrezorcrypto-crc.h b/core/embed/extmod/modtrezorcrypto/modtrezorcrypto-crc.h
index 2cf8d7b97..77a2e264b 100644
--- a/core/embed/extmod/modtrezorcrypto/modtrezorcrypto-crc.h
+++ b/core/embed/extmod/modtrezorcrypto/modtrezorcrypto-crc.h
@@ -26,9 +26,17 @@
 /// package: trezorcrypto.crc
 
 /// def crc32(data: bytes, crc: int = 0) -> int:
-///     """
-///     Computes a CRC32 checksum of `data`.
-///     """
+///    """
+///    Computes a CRC32 checksum of `data`.
+///
+///    Args:
+///        `data` (`bytes`): Input data.
+///        `crc` (`int`, `optional`): Initial CRC value for chaining
+///        computations over multiple data segments. Defaults to 0.
+///
+///    Returns:
+///        `int`: Computed CRC32 checksum.
+///    """
 mp_obj_t mod_trezorcrypto_crc_crc32(size_t n_args, const mp_obj_t *args) {
   mp_buffer_info_t bufinfo = {0};
   mp_get_buffer_raise(args[0], &bufinfo, MP_BUFFER_READ);
diff --git a/core/mocks/generated/trezorcrypto/crc.pyi b/core/mocks/generated/trezorcrypto/crc.pyi
index f7243114c..48b595faa 100644
--- a/core/mocks/generated/trezorcrypto/crc.pyi
+++ b/core/mocks/generated/trezorcrypto/crc.pyi
@@ -3,6 +3,12 @@ from typing import *
 
 # extmod/modtrezorcrypto/modtrezorcrypto-crc.h
 def crc32(data: bytes, crc: int = 0) -> int:
-    """
-    Computes a CRC32 checksum of `data`.
-    """
+   """
+   Computes a CRC32 checksum of `data`.
+   Args:
+       `data` (`bytes`): Input data.
+       `crc` (`int`, `optional`): Initial CRC value for chaining
+       computations over multiple data segments. Defaults to 0.
+   Returns:
+       `int`: Computed CRC32 checksum.
+   """