diff --git a/opm/core/WellsGroup.cpp b/opm/core/WellsGroup.cpp
index 91b2dceac..21a1c6ba4 100644
--- a/opm/core/WellsGroup.cpp
+++ b/opm/core/WellsGroup.cpp
@@ -482,6 +482,9 @@ namespace Opm
             }
             break;
         }
+        case InjectionSpecification::REIN:
+            std::cout << "WARNING: Ignoring control type REIN" << std::endl;
+            break;
         case InjectionSpecification::FLD:
         case InjectionSpecification::NONE:
             // Call all children