diff --git a/src/opm/input/eclipse/Deck/DeckItem.cpp b/src/opm/input/eclipse/Deck/DeckItem.cpp
index 5180f4efe..9f4af6c1e 100644
--- a/src/opm/input/eclipse/Deck/DeckItem.cpp
+++ b/src/opm/input/eclipse/Deck/DeckItem.cpp
@@ -503,9 +503,6 @@ bool DeckItem::to_bool(std::string string_value) {
     if (string_value == "1")
         return true;
 
-    if (string_value == "FLO")
-        return true;
-
     if (string_value == "FALSE")
         return false;
 
diff --git a/src/opm/input/eclipse/Schedule/KeywordHandlers.cpp b/src/opm/input/eclipse/Schedule/KeywordHandlers.cpp
index 2d62dec92..6f2b75109 100644
--- a/src/opm/input/eclipse/Schedule/KeywordHandlers.cpp
+++ b/src/opm/input/eclipse/Schedule/KeywordHandlers.cpp
@@ -795,10 +795,13 @@ File {} line {}.)", wname, location.keyword, location.filename, location.lineno)
                  this->invalidNamePattern(groupNamePattern, handlerContext);
              const auto& pressure_item = record.getItem<ParserKeywords::GRUPNET::TERMINAL_PRESSURE>();
              const int vfp_table = record.getItem<ParserKeywords::GRUPNET::VFP_TABLE>().get<int>(0);
-             // It is assumed here that item 6 (ADD_GAS_LIFT_GAS) has the two options ON and FLO. THe option ALQ is not supported.
+             // It is assumed here that item 6 (ADD_GAS_LIFT_GAS) has the two options NO and FLO. THe option ALQ is not supported.
              // For standard networks the summation of ALQ values are weighted with efficiency factors. 
              // Note that, currently, extended networks uses always efficiency factors (this is the default set by WEFAC item 3 (YES), the value NO is not supported.) 
-             const bool add_gas_lift_gas = DeckItem::to_bool(record.getItem<ParserKeywords::GRUPNET::ADD_GAS_LIFT_GAS>().get<std::string>(0));
+             const std::string& add_gas_lift_gas_string = record.getItem<ParserKeywords::GRUPNET::ADD_GAS_LIFT_GAS>().get<std::string>(0);
+             bool add_gas_lift_gas = false;
+             if (add_gas_lift_gas_string == "FLO") 
+                 add_gas_lift_gas = true;
 
              for (const auto& group_name : group_names) {
                   const auto& group = this->snapshots.back().groups.get(group_name);
@@ -841,7 +844,7 @@ File {} line {}.)", wname, location.keyword, location.filename, location.lineno)
         }
         // To use update_node the node should be associated to a branch via add_branch()
         // so the update of nodes is postponed after creation of branches
-        for(const auto& node: nodes) 
+        for(const auto& node: nodes)
               network.update_node(node);
         this->snapshots.back().network.update( std::move(network));
     }