diff --git a/test_problems/cathermo/ims/output_blessed.txt b/test_problems/cathermo/ims/output_blessed.txt
index 5d7311069..6da3bd75c 100644
--- a/test_problems/cathermo/ims/output_blessed.txt
+++ b/test_problems/cathermo/ims/output_blessed.txt
@@ -1,8 +1,3 @@
-species H2O(l) has volume 1.5
-species CO2(aq) has volume 1.3
-species H2S(aq) has volume 0.1
-species CH4(aq) has volume 0.1
-species C6H6(aq) has volume 0.1
 molar enthalpy   =      0.013282 J kg-1
 molar intEnergy  =      0.013282 J kg-1
 molar entropy    =        93.636 J kg-1 K-1