diff --git a/src/eval_visualization/eval_visualization_core.c b/src/eval_visualization/eval_visualization_core.c
index 6d2c04ac..2451b70f 100644
--- a/src/eval_visualization/eval_visualization_core.c
+++ b/src/eval_visualization/eval_visualization_core.c
@@ -1769,6 +1769,18 @@ ev_string_iter_next(Arena *arena, EV_StringIter *it, String8 *out_string)
         new_task.eval.irtree.type_key = e_type_key_direct(eval.irtree.type_key);
       }break;
       
+      //////////////////////////
+      //- rjf: bitfields
+      //
+      case E_TypeKind_Bitfield:
+      {
+        need_pop = 1;
+        need_new_task = 1;
+        new_task.params = *params;
+        new_task.eval = e_value_eval_from_eval(eval);
+        new_task.eval.irtree.type_key = e_type_key_direct(eval.irtree.type_key);
+      }break;
+      
       //////////////////////////
       //- rjf: pointers
       //
diff --git a/src/mule/mule_main.cpp b/src/mule/mule_main.cpp
index 00a60072..19f70cb2 100644
--- a/src/mule/mule_main.cpp
+++ b/src/mule/mule_main.cpp
@@ -523,6 +523,20 @@ type_coverage_eval_tests(void)
   
   Has_Enums has_enums = {(Kind)4, (Flag)7};
   
+  struct EnumBitfields
+  {
+    Kind k1 : 4;
+    Kind k2 : 3;
+    Kind k3 : 1;
+    Kind k4 : 16;
+  };
+  
+  EnumBitfields enum_bitfields = {};
+  enum_bitfields.k1 = Kind_First;
+  enum_bitfields.k2 = Kind_Second;
+  enum_bitfields.k3 = Kind_None;
+  enum_bitfields.k4 = Kind_Fourth;
+  
   Crazy_Union crazy_union = {};
   
   crazy_union.kind = Kind_First;