diff --git a/src/trezor/crypto/base32.py b/src/trezor/crypto/base32.py
index b7fc8c917d..0c6bf47e55 100644
--- a/src/trezor/crypto/base32.py
+++ b/src/trezor/crypto/base32.py
@@ -25,17 +25,17 @@ def encode(s: bytes) -> str:
         # leftover bit of c1 and tack it onto c2.  Then we take the 2 leftover
         # bits of c2 and tack them onto c3.  The shifts and masks are intended
         # to give us values of exactly 5 bits in width.
-        c1, c2, c3 = unpack('!HHB', s[i*5:(i+1)*5])
-        c2 += (c1 & 1) << 16 # 17 bits wide
-        c3 += (c2 & 3) << 8  # 10 bits wide
-        encoded += bytes([_b32tab[c1 >> 11],         # bits 1 - 5
-                          _b32tab[(c1 >> 6) & 0x1f], # bits 6 - 10
-                          _b32tab[(c1 >> 1) & 0x1f], # bits 11 - 15
-                          _b32tab[c2 >> 12],         # bits 16 - 20 (1 - 5)
-                          _b32tab[(c2 >> 7) & 0x1f], # bits 21 - 25 (6 - 10)
-                          _b32tab[(c2 >> 2) & 0x1f], # bits 26 - 30 (11 - 15)
-                          _b32tab[c3 >> 5],          # bits 31 - 35 (1 - 5)
-                          _b32tab[c3 & 0x1f],        # bits 36 - 40 (1 - 5)
+        c1, c2, c3 = unpack('!HHB', s[i * 5:(i + 1) * 5])
+        c2 += (c1 & 1) << 16  # 17 bits wide
+        c3 += (c2 & 3) << 8   # 10 bits wide
+        encoded += bytes([_b32tab[c1 >> 11],          # bits 1 - 5
+                          _b32tab[(c1 >> 6) & 0x1f],  # bits 6 - 10
+                          _b32tab[(c1 >> 1) & 0x1f],  # bits 11 - 15
+                          _b32tab[c2 >> 12],          # bits 16 - 20 (1 - 5)
+                          _b32tab[(c2 >> 7) & 0x1f],  # bits 21 - 25 (6 - 10)
+                          _b32tab[(c2 >> 2) & 0x1f],  # bits 26 - 30 (11 - 15)
+                          _b32tab[c3 >> 5],           # bits 31 - 35 (1 - 5)
+                          _b32tab[c3 & 0x1f],         # bits 36 - 40 (1 - 5)
                           ])
     # Adjust for any leftover partial quanta
     if leftover == 1:
diff --git a/tests/test_trezor.crypto.base32.py b/tests/test_trezor.crypto.base32.py
index 54a971ecc9..a651b7d4dd 100644
--- a/tests/test_trezor.crypto.base32.py
+++ b/tests/test_trezor.crypto.base32.py
@@ -24,12 +24,12 @@ class TestCryptoBase32(unittest.TestCase):
 
         (b'zlutoucky kun upel dabelske ody', 'PJWHK5DPOVRWW6JANN2W4IDVOBSWYIDEMFRGK3DTNNSSA33EPE======'),
 
-        (b'中文', '4S4K3ZUWQ4======'),
-        (b'中文1', '4S4K3ZUWQ4YQ===='),
-        (b'中文12', '4S4K3ZUWQ4YTE==='),
-        (b'aécio', 'MHB2SY3JN4======'),
-        (b'𠜎', '6CQJZDQ='),
-        (b'Base64是一種基於64個可列印字元來表示二進制資料的表示方法',
+        (b'中文', '4S4K3ZUWQ4======'),    # noqa:E999
+        (b'中文1', '4S4K3ZUWQ4YQ===='),   # noqa:E999
+        (b'中文12', '4S4K3ZUWQ4YTE==='),  # noqa:E999
+        (b'aécio', 'MHB2SY3JN4======'),   # noqa:E999
+        (b'𠜎', '6CQJZDQ='),              # noqa:E999
+        (b'Base64是一種基於64個可列印字元來表示二進制資料的表示方法',  # noqa:E999
          'IJQXGZJWGTTJRL7EXCAOPKFO4WP3VZUWXQ3DJZMARPSY7L7FRCL6LDNQ4WWZPZMFQPSL5BXIUGUOPJF24S5IZ2MAWLSYRNXIWOD6NFUZ46NIJ2FBVDT2JOXGS246NM4V')
     ]