diff --git a/spec.md b/spec.md
index df411699..563e763e 100644
--- a/spec.md
+++ b/spec.md
@@ -494,7 +494,7 @@ Program counter stays on the currently executed instruction
 |:-----------|:--------------------|:-------|
 | r0         | Hard-wired zero     | N/A    |
 | r1 - r2    | Return values       | Caller |
-| r2 - r11   | Function parameters | Caller |
+| r1 - r11   | Function parameters | Caller |
 | r12 - r30  | General purpose     | Caller |
 | r31        | Return address      | Caller |
 | r32 - r253 | General purpose     | Callee |