diff --git a/src/isolator/hei_isolator.cpp b/src/isolator/hei_isolator.cpp
index 41d33a9..7e3a032 100644
--- a/src/isolator/hei_isolator.cpp
+++ b/src/isolator/hei_isolator.cpp
@@ -59,11 +59,9 @@
     Flyweight<IdScomRegister>::getSingleton().clear();
 }
 
-ReturnCode Isolator::isolate(const std::vector<Chip>& i_chipList,
-                             IsolationData& o_isoData) const
+void Isolator::isolate(const std::vector<Chip>& i_chipList,
+                       IsolationData& o_isoData) const
 {
-    ReturnCode rc;
-
     // Flush the isolation data to ensure a clean slate.
     o_isoData.flush();
 
@@ -94,8 +92,6 @@
         }
         // END temporary code
     }
-
-    return rc;
 }
 
 } // end namespace libhei
diff --git a/src/isolator/hei_isolator.hpp b/src/isolator/hei_isolator.hpp
index 207f940..fddcedd 100644
--- a/src/isolator/hei_isolator.hpp
+++ b/src/isolator/hei_isolator.hpp
@@ -66,8 +66,8 @@
     void uninitialize();
 
     /** @brief See API wrapper description in hei_main.hpp. */
-    ReturnCode isolate(const std::vector<Chip>& i_chipList,
-                       IsolationData& o_isoData) const;
+    void isolate(const std::vector<Chip>& i_chipList,
+                 IsolationData& o_isoData) const;
 
   private:
     // BEGIN temporary code