diff --git a/std/math/complex/index.zig b/std/math/complex/index.zig
index 24f726453f..a4d493307e 100644
--- a/std/math/complex/index.zig
+++ b/std/math/complex/index.zig
@@ -23,7 +23,6 @@ pub const sqrt = @import("sqrt.zig").sqrt;
 pub const tanh = @import("tanh.zig").tanh;
 pub const tan = @import("tan.zig").tan;
 
-// NOTE: Make this a builtin at some point?
 pub fn Complex(comptime T: type) type {
     return struct {
         const Self = this;
diff --git a/std/math/complex/sqrt.zig b/std/math/complex/sqrt.zig
index 02e6390572..afda69f7c9 100644
--- a/std/math/complex/sqrt.zig
+++ b/std/math/complex/sqrt.zig
@@ -4,8 +4,7 @@ const math = std.math;
 const cmath = math.complex;
 const Complex = cmath.Complex;
 
-// NOTE: Returning @typeOf(z) here causes issues when trying to access the value. This is
-// why we currently assign re, im parts to a new value explicitly for all tests.
+// TODO when #733 is solved this can be @typeOf(z) instead of Complex(@typeOf(z.re))
 pub fn sqrt(z: var) Complex(@typeOf(z.re)) {
     const T = @typeOf(z.re);