diff --git a/src/util/gparams.cpp b/src/util/gparams.cpp
index 83157a0b0..adffe6bde 100644
--- a/src/util/gparams.cpp
+++ b/src/util/gparams.cpp
@@ -261,8 +261,7 @@ public:
                 throw default_exception(strm.str());
             }
             break;
-        case CPK_SYMBOL:
-        case CPK_STRING:
+        default:
             break;
         }
     }