diff --git a/opm/parser/eclipse/EclipseState/Schedule/Group/GConSale.hpp b/opm/parser/eclipse/EclipseState/Schedule/Group/GConSale.hpp
index ca290ac09..68271ea1d 100644
--- a/opm/parser/eclipse/EclipseState/Schedule/Group/GConSale.hpp
+++ b/opm/parser/eclipse/EclipseState/Schedule/Group/GConSale.hpp
@@ -39,7 +39,7 @@ namespace Opm {
             MaxProcedure max_proc;
         };
 
-        GConSale();
+        GConSale() = default;
         
         bool has(const std::string& name) const;
         const GCONSALEGroup& get(const std::string& name) const;
diff --git a/opm/parser/eclipse/EclipseState/Schedule/Group/GConSump.hpp b/opm/parser/eclipse/EclipseState/Schedule/Group/GConSump.hpp
index cfecc9aef..6d8ade805 100644
--- a/opm/parser/eclipse/EclipseState/Schedule/Group/GConSump.hpp
+++ b/opm/parser/eclipse/EclipseState/Schedule/Group/GConSump.hpp
@@ -29,7 +29,7 @@ namespace Opm {
 
     class GConSump {
     public:
-        GConSump();
+        GConSump() = default;
 
         struct GCONSUMPGroup {
             UDAValue consumption_rate;
diff --git a/src/opm/parser/eclipse/EclipseState/Schedule/Group/GConSale.cpp b/src/opm/parser/eclipse/EclipseState/Schedule/Group/GConSale.cpp
index f16be4265..90e055f52 100644
--- a/src/opm/parser/eclipse/EclipseState/Schedule/Group/GConSale.cpp
+++ b/src/opm/parser/eclipse/EclipseState/Schedule/Group/GConSale.cpp
@@ -23,9 +23,6 @@
 
 namespace Opm {
 
-GConSale::GConSale() {
-}
-
 bool GConSale::has(const std::string& name) const {
     return (groups.find(name) != groups.end());
 }
diff --git a/src/opm/parser/eclipse/EclipseState/Schedule/Group/GConSump.cpp b/src/opm/parser/eclipse/EclipseState/Schedule/Group/GConSump.cpp
index b38d22222..ad31e3cc8 100644
--- a/src/opm/parser/eclipse/EclipseState/Schedule/Group/GConSump.cpp
+++ b/src/opm/parser/eclipse/EclipseState/Schedule/Group/GConSump.cpp
@@ -21,10 +21,6 @@
 
 namespace Opm {
 
-GConSump::GConSump() {
-}
-
-
 bool GConSump::has(const std::string& name) const {
     return (groups.find(name) != groups.end());
 }