diff --git a/EIPS/eip-145.md b/EIPS/eip-145.md
index bd2ebc02..91bf3232 100644
--- a/EIPS/eip-145.md
+++ b/EIPS/eip-145.md
@@ -4,7 +4,7 @@
     Title: Bitwise shifting instructions in EVM
     Author: Alex Beregszaszi, Paweł Bylica
     Type: Standard Track
-    Category Core
+    Category: Core
     Status: Draft
     Created: 2017-02-13
 
@@ -34,7 +34,8 @@ The `SHL` instruction (shift left) pops 2 values from the stack, `arg1` and `arg
 ```
 
 Notes:
-- If the shift amount is greater or equal 256 the result is 0.
+- The shift amount (`arg2`) is interpreted as an unsigned number.
+- If the shift amount (`arg2`) is greater or equal 256 the result is 0.
 
 ### `0x1c`: `SHR` (logical shift right)
 
@@ -45,7 +46,8 @@ arg1 udiv 2^arg2
 ```
 
 Notes:
-- If the shift amount is greater or equal 256 the result is 0.
+- The shift amount (`arg2`) is interpreted as an unsigned number.
+- If the shift amount (`arg2`) is greater or equal 256 the result is 0.
 
 ### `0x1d`: `SAR` (arithmetic shift right)
 
@@ -56,7 +58,7 @@ arg1 sdiv 2^arg2
 ```
 
 Notes:
-- `arg2` is interpreted as unsigned number.
+- The shift amount (`arg2`) is interpreted as an unsigned number.
 - If the shift amount (`arg2`) is greater or equal 256 the result is 0 if `arg1` is non-negative or -1 if `arg1` is negative.
 
 The cost of the shift instructions is set at `verylow` tier (3 gas).