diff --git a/tests/grib_ecc-604-1.c b/tests/grib_ecc-604-1.c
index 8349080c4..18f51347e 100644
--- a/tests/grib_ecc-604-1.c
+++ b/tests/grib_ecc-604-1.c
@@ -58,7 +58,8 @@ static int encode_file(char *template_file, char *output_file)
         }
         {
             FILE *devnull = fopen("/dev/null", "w");
-            grib_dump_content(source_handle,devnull,"wmo",0,NULL);
+            grib_dump_content(source_handle,devnull, "debug", 0, NULL);
+            grib_dump_content(clone_handle, devnull, "debug", 0, NULL);
         }
         grib_handle_delete(clone_handle);
         grib_handle_delete(source_handle);
diff --git a/tests/grib_ecc-604-2.c b/tests/grib_ecc-604-2.c
index fb41d95c7..de25768bf 100644
--- a/tests/grib_ecc-604-2.c
+++ b/tests/grib_ecc-604-2.c
@@ -57,7 +57,7 @@ static int encode_file(char *template_file, char *output_file)
         }
         {
             FILE *devnull = fopen("/dev/null", "w");
-            grib_dump_content(source_handle,devnull,"wmo",0,NULL);
+            grib_dump_content(source_handle,devnull,"debug",0,NULL);
         }
         grib_handle_delete(source_handle);
         free(values);
diff --git a/tests/grib_ecc-604-3.c b/tests/grib_ecc-604-3.c
index f773f2c5f..07b1a0d29 100644
--- a/tests/grib_ecc-604-3.c
+++ b/tests/grib_ecc-604-3.c
@@ -55,7 +55,8 @@ static int decode_file(char *template_file)
 
         {
             FILE *devnull = fopen("/dev/null", "w");
-            grib_dump_content(source_handle,devnull,"wmo",0,NULL);
+            grib_dump_content(source_handle, devnull, "debug", 0, NULL);
+            grib_dump_content(clone_handle,  devnull, "debug", 0, NULL);
         }
 
         grib_handle_delete(clone_handle);