diff --git a/README.md b/README.md
index 7979528..833e9c9 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ Package **hexadeca** does _not_ impose any endianness for hexadecimal encoding.
 The individual symbols are returned separately. For example:
 
 ```go
-b1, b0 := hexadeca.EncodeByteUsingUpperCaseSymbols(u16)
+b1, b0 := hexadeca.EncodeByteUsingUpperCaseSymbols(u8)
 ```
 
 ```go
@@ -16,7 +16,7 @@ b3, b2, b1, b0 := hexadeca.EncodeUint16UsingLowerCaseSymbols(u16)
 ```
 
 ```go
-r7, r6, r5, r4, r3, r2, r1, r0 := hexadeca.EncodeUint32UsingPersianSymbols(u16)
+r7, r6, r5, r4, r3, r2, r1, r0 := hexadeca.EncodeUint32UsingPersianSymbols(u32)
 ```
 
 Package **hexadeca** has functions for hexadecimal encoding and decoding for the Go types: