diff --git a/src/math/abs.go b/src/math/abs.go
index e35e4da792a..924ee7cc973 100644
--- a/src/math/abs.go
+++ b/src/math/abs.go
@@ -10,13 +10,13 @@ package math
 //	Abs(±Inf) = +Inf
 //	Abs(NaN) = NaN
 func Abs(x float64) float64 {
-	// TODO: once golang.org/issue/13905 is fixed, change this to:
+	// TODO: once golang.org/issue/13095 is fixed, change this to:
 	// return Float64frombits(Float64bits(x) &^ (1 << 63))
 	// But for now, this generates better code and can also be inlined:
-	switch {
-	case x < 0:
+	if x < 0 {
 		return -x
-	case x == 0:
+	}
+	if x == 0 {
 		return 0 // return correctly abs(-0)
 	}
 	return x