--- a/src/modules/bugs/samplers/MNormalFactory.cc
+++ b/src/modules/bugs/samplers/MNormalFactory.cc
@@ -32,7 +32,7 @@
     for (unsigned int ch = 0; ch < N; ++ch) {
         methods[ch] = new MNormMetropolis(gv, ch);
     }
-    return new MutableSampler(gv, methods, "MNormalMetropolis");
+    return new MutableSampler(gv, methods, "bugs::MNormalMetropolis");
 }
 
 string MNormalFactory::name() const