diff --git a/src/CheckSolution.jl b/src/CheckSolution.jl
index 7bcb74a..0fb7610 100644
--- a/src/CheckSolution.jl
+++ b/src/CheckSolution.jl
@@ -36,17 +36,17 @@ function compute_SOS(sqrt_matrix, elt::GroupRingElem)
    l = length(elt.coeffs)
    pm = parent(elt).pm
 
-   result = zeros(eltype(sqrt_matrix), l)
-   for i in 1:n
-      result .+= groupring_square(view(sqrt_matrix,:,i), l, pm)
-   end
-
-   # @everywhere groupring_square = PropertyT.groupring_square
-   #
-   # result = @parallel (+) for i in 1:n
-   #    groupring_square(view(sqrt_matrix,:,i), length(elt.coeffs), parent(elt).pm)
+   # result = zeros(eltype(sqrt_matrix), l)
+   # for i in 1:n
+   #    result .+= groupring_square(view(sqrt_matrix,:,i), l, pm)
    # end
 
+   @everywhere groupring_square = PropertyT.groupring_square
+
+   result = @parallel (+) for i in 1:n
+       groupring_square(view(sqrt_matrix,:,i), length(elt.coeffs), parent(elt).pm)
+   end
+
    return GroupRingElem(result, parent(elt))
 end