diff --git a/Item-Specifications.md b/Item-Specifications.md
index bcf2d48..6bbacc6 100644
--- a/Item-Specifications.md
+++ b/Item-Specifications.md
@@ -64,7 +64,6 @@ export const sqrt = onType(Number, math => {
    return Returns(
       Union(Number, Complex(Number)),
       a => n < 0 ? complex(0, Math.sqrt(-a)) : Math.sqrt(a)
-      if (isNaN(a)) return NaN
    )
 }
 ```