diff --git a/lib/Database/PostgreSQL/Opium/FromField.hs b/lib/Database/PostgreSQL/Opium/FromField.hs
index b0fb141..b2f14c6 100644
--- a/lib/Database/PostgreSQL/Opium/FromField.hs
+++ b/lib/Database/PostgreSQL/Opium/FromField.hs
@@ -86,14 +86,14 @@ readInt bs = case BS.length bs of
   4 -> pure $ fromIntegral $ readBigEndian @Int32 bs
   8 -> pure $ fromIntegral $ readBigEndian @Int bs
   2 -> pure $ fromIntegral $ readBigEndian @Int16 bs
-  _ -> fail "Wrong number bytes for integer"
+  _ -> fail "Wrong number of bytes for integer"
 
 readWord :: Num a => ByteString -> Parser a
 readWord bs = case BS.length bs of
   4 -> pure $ fromIntegral $ readBigEndian @Word32 bs
   8 -> pure $ fromIntegral $ readBigEndian @Word bs
   2 -> pure $ fromIntegral $ readBigEndian @Word16 bs
-  _ -> fail "Wrong number bytes for word"
+  _ -> fail "Wrong number of bytes for word"
 
 -- | See https://www.postgresql.org/docs/current/datatype-numeric.html.
 -- We assume that 'Int' has 64 bits. This is not guaranteed but reasonable enough.