diff --git a/test/test_mean_opacities.cpp b/test/test_mean_opacities.cpp
index ba1d371..0e036c7 100644
--- a/test/test_mean_opacities.cpp
+++ b/test/test_mean_opacities.cpp
@@ -832,7 +832,7 @@ TEST_CASE("ASCII-parsed Mean photon opacities", "[MeanPhotons]") {
       Real B = dist.ThermalDistributionOfT(temp_max, lambda);
 
       Real memiss_ross = mean_opac.Emissivity(rho_max, temp_max, 0);
-      Real memiss_plnk = mean_opac.Emissivity(rho_max, temp_max, 0);
+      Real memiss_plnk = mean_opac.Emissivity(rho_max, temp_max, 1);
 
       // compare to Rossland and Planck
       if (FractionalDifference(mross * B, memiss_ross) > EPS_TEST) {
diff --git a/utils/spiner b/utils/spiner
index bd57161..d355593 160000
--- a/utils/spiner
+++ b/utils/spiner
@@ -1 +1 @@
-Subproject commit bd57161576a62a13341dada183f2b336a3e99b08
+Subproject commit d35559345acfa250814f284147b260ac4d2ea7b5