diff --git a/src/engine/kvp_frame.c b/src/engine/kvp_frame.c
index 4f4db82955..ecb64b3303 100644
--- a/src/engine/kvp_frame.c
+++ b/src/engine/kvp_frame.c
@@ -30,6 +30,7 @@
 #include <math.h>
 
 #include "gnc-engine.h"
+#include "gnc-engine-util.h"
 #include "gnc-numeric.h"
 #include "guid.h"
 #include "kvp_frame.h"
@@ -62,6 +63,9 @@ struct _kvp_value {
   } value;
 };
 
+/* This static indicates the debugging module that this .o belongs to.  */
+static short module = MOD_ENGINE;
+
 /********************************************************************
  * kvp_frame functions
  ********************************************************************/
@@ -891,7 +895,7 @@ kvp_value_compare(const kvp_value * kva, const kvp_value * kvb) {
     return kvp_frame_compare(kva->value.frame, kvb->value.frame);
     break;
   }
-  fprintf(stderr, "DANGER: reached unreachable code (kvp_value_equal).\n");
+  PERR ("reached unreachable code.");
   return FALSE;
 }