diff --git a/xo-procedure2/src/procedure2/GcPrimitives.cpp b/xo-procedure2/src/procedure2/GcPrimitives.cpp
index 732608d4..a6a4fdb3 100644
--- a/xo-procedure2/src/procedure2/GcPrimitives.cpp
+++ b/xo-procedure2/src/procedure2/GcPrimitives.cpp
@@ -47,7 +47,7 @@ namespace xo {
                                                                        bool_ty,
                                                                        int_ty));
 
-            return DPrimitive_gco_1_gco::_make(mm, "request_gc", pm_ty, &xfer_request_gc);
+            return DPrimitive_gco_1_gco::_make(mm, "request-gc", pm_ty, &xfer_request_gc);
         }
     }
 }