diff --git a/ThermoHubClient/AqlQueries.h b/ThermoHubClient/AqlQueries.h
index 90a9f9d..1f491eb 100644
--- a/ThermoHubClient/AqlQueries.h
+++ b/ThermoHubClient/AqlQueries.h
@@ -69,7 +69,7 @@ const std::string aql_thermofun_database_from_thermodataset =
 "            formula:    s.properties.formula, \n "
 "            formula_charge: s.properties.formula_charge, \n "
 "            reaction : reaction_symbol[0], \n "
-"//            mass_per_mole:  s.properties.mass_per_mole, \n "
+"            mass_per_mole:  {values : [s.properties.mass_per_mole] }, \n "
 "            aggregate_state:    s.properties.aggregate_state, \n "
 "            class_:    s.properties.class_, \n "
 "            limitsTP:   s.properties.limitsTP, \n "
diff --git a/environment.devenv.yml b/environment.devenv.yml
index 76cfa7a..6cc5da0 100644
--- a/environment.devenv.yml
+++ b/environment.devenv.yml
@@ -4,7 +4,7 @@ name: thermohubclient
 
 dependencies:
   - gxx_linux-64>=9.3.0  # [linux]
-  - ninja  # [win]
+  - ninja 
   - make  # [unix and osx]
   - cmake
   - git