diff --git a/opm/parser/eclipse/EclipseState/TracerConfig.hpp b/opm/parser/eclipse/EclipseState/TracerConfig.hpp
index 814f2a3f2..fca15327b 100644
--- a/opm/parser/eclipse/EclipseState/TracerConfig.hpp
+++ b/opm/parser/eclipse/EclipseState/TracerConfig.hpp
@@ -74,6 +74,12 @@ public:
             , solution_tvdp(std::move(solution_tvdp_))
         {}
 
+        TracerEntry(const std::string& name_, const std::string& unit_string_, Phase phase_)
+            : name(name_)
+            , unit_string(unit_string_)
+            , phase(phase_)
+        {}
+
         bool operator==(const TracerEntry& data) const {
             return this->name == data.name &&
                    this->unit_string == data.unit_string &&
diff --git a/src/opm/parser/eclipse/EclipseState/TracerConfig.cpp b/src/opm/parser/eclipse/EclipseState/TracerConfig.cpp
index f6066c7f4..56f9a8fc8 100644
--- a/src/opm/parser/eclipse/EclipseState/TracerConfig.cpp
+++ b/src/opm/parser/eclipse/EclipseState/TracerConfig.cpp
@@ -151,7 +151,7 @@ TracerConfig::TracerConfig(const UnitSystem& unit_system, const Deck& deck)
                 continue;
             }
 
-            throw std::runtime_error("Uninitialized tracer concentration for tracer " + name);
+            this->tracers.emplace_back(name, unit_string, phase);
         }
     }
 }