diff --git a/app/widgets/gimppropwidgets.c b/app/widgets/gimppropwidgets.c
index f1305e9aed..eac1f57360 100644
--- a/app/widgets/gimppropwidgets.c
+++ b/app/widgets/gimppropwidgets.c
@@ -92,14 +92,19 @@ gimp_prop_expanding_frame_new (GObject      *config,
                                GtkWidget    *child,
                                GtkWidget   **button)
 {
-  GtkWidget *frame;
-  GtkWidget *toggle;
-  gboolean   value;
+  GParamSpec *param_spec;
+  GtkWidget  *frame;
+  GtkWidget  *toggle;
+  gboolean    value;
 
-  if (! check_param_spec_w (config, property_name,
-                            G_TYPE_PARAM_BOOLEAN, G_STRFUNC))
+  param_spec = check_param_spec_w (config, property_name,
+                                   G_TYPE_PARAM_BOOLEAN, G_STRFUNC);
+  if (! param_spec)
     return NULL;
 
+  if (! button_label)
+    button_label = g_param_spec_get_nick (param_spec);
+
   frame = gimp_frame_new (NULL);
 
   toggle = gimp_prop_check_button_new (config, property_name, button_label);
@@ -272,6 +277,9 @@ gimp_prop_color_button_new (GObject           *config,
   if (! param_spec)
     return NULL;
 
+  if (! title)
+    title = g_param_spec_get_nick (param_spec);
+
   g_object_get (config,
                 property_name, &value,
                 NULL);
@@ -494,12 +502,12 @@ gimp_prop_spin_scale_new (GObject     *config,
                                                G_STRFUNC))
     return NULL;
 
-  if (! G_IS_PARAM_SPEC_DOUBLE (param_spec))
-    digits = 0;
-
   if (! label)
     label = g_param_spec_get_nick (param_spec);
 
+  if (! G_IS_PARAM_SPEC_DOUBLE (param_spec))
+    digits = 0;
+
   adjustment = (GtkAdjustment *)
     gtk_adjustment_new (value, lower, upper,
                         step_increment, page_increment, 0.0);
diff --git a/libgimpwidgets/gimppropwidgets.c b/libgimpwidgets/gimppropwidgets.c
index 96f9a113a5..e8b5d253f8 100644
--- a/libgimpwidgets/gimppropwidgets.c
+++ b/libgimpwidgets/gimppropwidgets.c
@@ -125,6 +125,9 @@ gimp_prop_check_button_new (GObject     *config,
   if (! param_spec)
     return NULL;
 
+  if (! label)
+    label = g_param_spec_get_nick (param_spec);
+
   g_object_get (config,
                 property_name, &value,
                 NULL);
@@ -232,6 +235,9 @@ gimp_prop_enum_check_button_new (GObject     *config,
   if (! param_spec)
     return NULL;
 
+  if (! label)
+    label = g_param_spec_get_nick (param_spec);
+
   g_object_get (config,
                 property_name, &value,
                 NULL);
@@ -783,6 +789,9 @@ gimp_prop_enum_radio_frame_new (GObject     *config,
   if (! param_spec)
     return NULL;
 
+  if (! title)
+    title = g_param_spec_get_nick (param_spec);
+
   g_object_get (config,
                 property_name, &value,
                 NULL);
@@ -987,6 +996,9 @@ gimp_prop_boolean_radio_frame_new (GObject     *config,
   if (! param_spec)
     return NULL;
 
+  if (! title)
+    title = g_param_spec_get_nick (param_spec);
+
   g_object_get (config,
                 property_name, &value,
                 NULL);
@@ -1341,6 +1353,9 @@ gimp_prop_scale_entry_new (GObject     *config,
                             param_spec, &value, &lower, &upper, G_STRFUNC))
     return NULL;
 
+  if (! label)
+    label = g_param_spec_get_nick (param_spec);
+
   tooltip = g_param_spec_get_blurb (param_spec);
 
   if (! limit_scale)
@@ -3975,6 +3990,9 @@ gimp_prop_expander_new (GObject     *config,
   if (! param_spec)
     return NULL;
 
+  if (! label)
+    label = g_param_spec_get_nick (param_spec);
+
   g_object_get (config,
                 property_name, &value,
                 NULL);