diff --git a/gen191/6/ap.c b/gen191/6/ap.c
index d86fd1f758..6e76a1c525 100644
--- a/gen191/6/ap.c
+++ b/gen191/6/ap.c
@@ -621,9 +621,15 @@
         case c3__cnbc: {
           return u2_bc(wir_r, u2_rx(wir_r, u2_t(gen)), u2_nul);
         }
+        case c3__cnzy: {
+          return u2_bc(wir_r, u2_rx(wir_r, u2_t(gen)), u2_nul);
+        }
         case c3__cnhx: {
           return u2_rx(wir_r, u2_t(gen));
         }
+        case c3__cnzz: {
+          return u2_rx(wir_r, u2_t(gen));
+        }
         case c3__cnts: {
           if ( u2_no == u2_as_cell(u2_t(gen), &p_gen, &q_gen) ) {
             return u2_bl_bail(wir_r, c3__fail);
diff --git a/gen191/6/ut_sift.c b/gen191/6/ut_sift.c
index 12b6860841..1643f63f99 100644
--- a/gen191/6/ut_sift.c
+++ b/gen191/6/ut_sift.c
@@ -60,6 +60,8 @@
                         u2_noun sut,                              //  retain
                         u2_noun ref)                              //  retain
   {
+    return u2k(ref);
+
 #if 0
     u2_ho_jet *jet_j = &j2_mcj(Pt6, ut, sift)[0];
 
diff --git a/include/c/motes.h b/include/c/motes.h
index 47ae018deb..bb52151c88 100644
--- a/include/c/motes.h
+++ b/include/c/motes.h
@@ -195,6 +195,8 @@
 #   define c3__cnsg   c3_s4('c','n','s','g')
 #   define c3__cntr   c3_s4('c','n','t','r')
 #   define c3__cnts   c3_s4('c','n','t','s')
+#   define c3__cnzy   c3_s4('c','n','z','y')
+#   define c3__cnzz   c3_s4('c','n','z','z')
 #   define c3__coat   c3_s4('c','o','a','t')
 #   define c3__code   c3_s4('c','o','d','e')
 #   define c3__coin   c3_s4('c','o','i','n')