diff --git a/Appl/CEP/CS1/CS1_DFTImager/src/ImagerProcessControl.cc b/Appl/CEP/CS1/CS1_DFTImager/src/ImagerProcessControl.cc
index cd9cb1e80b1bf036225851b480289f9215e8102f..5336aa90bebe8c0c72a645df81acb465db166111 100644
--- a/Appl/CEP/CS1/CS1_DFTImager/src/ImagerProcessControl.cc
+++ b/Appl/CEP/CS1/CS1_DFTImager/src/ImagerProcessControl.cc
@@ -128,6 +128,11 @@ namespace LOFAR
       return true;
     }
 
+    //===============>>> ImagerProcessControl::release  <<<=============================
+    tribool ImagerProcessControl::release()
+    { return false;
+    }
+
     //===============>>> ImagerProcessControl::recover  <<<=============================
     tribool ImagerProcessControl::recover(const std::string&)
     { return false;