diff --git a/src/action_class_set_missing.cc b/src/action_class_set_missing.cc
index 0907c3760..413551547 100644
--- a/src/action_class_set_missing.cc
+++ b/src/action_class_set_missing.cc
@@ -14,7 +14,6 @@
 
    START_CLASS_DEF
    CLASS      = action
-   IMPLEMENTS = dump
    IMPLEMENTS = destroy;execute
    MEMBERS    = char *name
    END_CLASS_DEF
@@ -32,7 +31,6 @@ or edit "action.class" and rerun ./make_class.pl
 */
 
 static void init_class      (grib_action_class*);
-static void dump            (grib_action* d, FILE*,int);
 static void destroy         (grib_context*,grib_action*);
 static int execute(grib_action* a,grib_handle* h);
 
@@ -52,7 +50,7 @@ static grib_action_class _grib_action_class_set_missing = {
     &init_class,                         /* init_class */
     0,                               /* init */
     &destroy,                            /* destroy */
-    &dump,                               /* dump */
+    0,                               /* dump */
     0,                               /* xref */
     0,                    /* create_accessor */
     0,                      /* notify_change */
@@ -95,17 +93,6 @@ static int execute(grib_action* a, grib_handle* h)
     return grib_set_missing(h, self->name);
 }
 
-static void dump(grib_action* act, FILE* f, int lvl)
-{
-    grib_context_log(act->context, GRIB_LOG_ERROR, "%s %s(): Not implemented", __FILE__, __func__);
-    // int i = 0;
-    // const grib_action_set_missing* self = (grib_action_set_missing*)act;
-    // for (i = 0; i < lvl; i++)
-    //     grib_context_print(act->context, f, "     ");
-    // grib_context_print(act->context, f, self->name);
-    // printf("\n");
-}
-
 static void destroy(grib_context* context, grib_action* act)
 {
     grib_action_set_missing* a = (grib_action_set_missing*)act;
diff --git a/tools/codes_config.in b/tools/codes_config.in
index fa15d0115..017c4715c 100755
--- a/tools/codes_config.in
+++ b/tools/codes_config.in
@@ -7,6 +7,9 @@ ECCODES_PATCH_VERSION=@eccodes_VERSION_PATCH@
 # ECCODES_VERSION="$ECCODES_MAJOR_VERSION.$ECCODES_MINOR_VERSION.$ECCODES_PATCH_VERSION"
 
 ECCODES_GIT_SHA1="@eccodes_GIT_SHA1@"
+if [ "x$ECCODES_GIT_SHA1" = "x" ]; then
+  ECCODES_GIT_SHA1="unknown"
+fi
 
 #################################################################
 # Commands