diff --git a/ChangeLog b/ChangeLog
index 838673054c..9cdb5fa887 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2006-03-22  Andreas Köhler  <andi5.py@gmx.net>
 
+	* src/gnome-utils/gnc-dense-cal.c:
+	* src/gnome-utils/gnc-frequency.c:
+	* src/gnome-utils/gnc-recurrence.c: Remove some optional return
+	  value locations in emissions of signals without return value.
+
 	* src/gnome-utils/gnc-html-graph-gog.c: Rename gtkhtml workaround,
 	  non-squared graphs in gtkhtml >= 3.10.1. Fix 328114.
 
diff --git a/src/gnome-utils/gnc-dense-cal.c b/src/gnome-utils/gnc-dense-cal.c
index 1fcfc4ddcf..5f60673c72 100644
--- a/src/gnome-utils/gnc-dense-cal.c
+++ b/src/gnome-utils/gnc-dense-cal.c
@@ -687,7 +687,7 @@ recompute_mark_storage( GncDenseCal *dcal )
  createNew:
         dcal->numMarks = num_weeks(dcal) * 7;
         dcal->marks = g_new0( GList*, dcal->numMarks );
-        g_signal_emit_by_name( dcal, MARKS_LOST_SIGNAL_NAME, NULL );
+        g_signal_emit_by_name( dcal, MARKS_LOST_SIGNAL_NAME );
 }
 
 static void
diff --git a/src/gnome-utils/gnc-frequency.c b/src/gnome-utils/gnc-frequency.c
index 1940f58273..11a472dbe0 100644
--- a/src/gnome-utils/gnc-frequency.c
+++ b/src/gnome-utils/gnc-frequency.c
@@ -260,7 +260,7 @@ do_frequency_setup( GNCFrequency *gf, FreqSpec *fs, time_t *secs)
                 gnc_date_edit_set_time( gf->startDate, *secs);
                 if (NULL == fs) 
                 {
-                        g_signal_emit_by_name( gf, "changed", NULL );
+                        g_signal_emit_by_name( gf, "changed" );
                 }
         }
  
@@ -555,7 +555,7 @@ do_frequency_setup( GNCFrequency *gf, FreqSpec *fs, time_t *secs)
                 break;
         }
 
-        g_signal_emit_by_name( gf, "changed", NULL );
+        g_signal_emit_by_name( gf, "changed" );
 }
 
 static void
@@ -832,7 +832,7 @@ gnc_frequency_save_state( GNCFrequency *gf, FreqSpec *fs, GDate *outDate )
 static void
 spin_changed_helper( GtkAdjustment *adj, gpointer d )
 {
-        g_signal_emit_by_name( GNC_FREQUENCY(d), "changed", NULL );
+        g_signal_emit_by_name( GNC_FREQUENCY(d), "changed" );
 }
 
 static void
@@ -841,7 +841,7 @@ weekly_days_changed( GtkButton *b, gpointer d )
         GNCFrequency *gf;
 
         gf = GNC_FREQUENCY(d);
-        g_signal_emit_by_name( gf, "changed", NULL );
+        g_signal_emit_by_name( gf, "changed" );
 }
 
 static void
@@ -870,7 +870,7 @@ monthly_sel_changed( GtkButton *b, gpointer d )
         tmptt = mktime( tmptm );
         gnc_date_edit_set_time( gf->startDate, tmptt );
 
-        g_signal_emit_by_name( d, "changed", NULL );
+        g_signal_emit_by_name( d, "changed" );
 }
 
 static void
@@ -903,7 +903,7 @@ semimonthly_sel_changed( GtkButton *b, gpointer d )
         tmptt = mktime( tmptm );
         gnc_date_edit_set_time( gf->startDate, tmptt );
 
-        g_signal_emit_by_name( gf, "changed", NULL );
+        g_signal_emit_by_name( gf, "changed" );
 }
 
 static void
@@ -958,7 +958,7 @@ year_range_sels_changed( GNCFrequency *gf,
         tmpTT = mktime( tmpTm );
         gnc_date_edit_set_time( gf->startDate, tmpTT );
 
-        g_signal_emit_by_name( gf, "changed", NULL );
+        g_signal_emit_by_name( gf, "changed" );
 }
 
 static void
@@ -991,7 +991,7 @@ yearly_sel_changed( GtkButton *b, gpointer d )
         tmptt = mktime( tmptm );
         gnc_date_edit_set_time( gf->startDate, tmptt );
 
-        g_signal_emit_by_name( gf, "changed", NULL );
+        g_signal_emit_by_name( gf, "changed" );
 }
 
 static inline guint32 min( guint32 a, guint32 b )
@@ -1077,7 +1077,7 @@ freq_option_value_changed( GtkMenuShell *b, gpointer d )
                 /* nuttin can be done, for whatever reason. */
                 break;
         }
-        g_signal_emit_by_name( gf, "changed", NULL );
+        g_signal_emit_by_name( gf, "changed" );
 }
 
 static void
@@ -1178,7 +1178,7 @@ start_date_changed( GNCDateEdit *gde, gpointer d )
                 PERR( "unknown uift value %d\n", uift );
                 break;
         }
-        g_signal_emit_by_name( gf, "changed", NULL );
+        g_signal_emit_by_name( gf, "changed" );
 }
 
 /* ================================================================= */
diff --git a/src/gnome-utils/gnc-recurrence.c b/src/gnome-utils/gnc-recurrence.c
index 0320f17d12..b62ab9e77c 100644
--- a/src/gnome-utils/gnc-recurrence.c
+++ b/src/gnome-utils/gnc-recurrence.c
@@ -158,7 +158,7 @@ something_changed( GtkWidget *wid, gpointer d )
     }
     g_object_set(G_OBJECT(gr->gcb_eom), "visible", show_last, NULL);
 
-    g_signal_emit_by_name(d, "changed", NULL);  // not sure if NULL is needed
+    g_signal_emit_by_name(d, "changed");
 }
 
 static void
@@ -382,7 +382,7 @@ typedef enum {
 
 static void grc_changed(GtkWidget *w, gpointer data)
 {
-    g_signal_emit_by_name(data, "changed", NULL);
+    g_signal_emit_by_name(data, "changed");
 }
 static void addRecurrence(GncRecurrenceComp *grc, GncRecurrence *gr)
 {
@@ -394,7 +394,7 @@ static void addRecurrence(GncRecurrenceComp *grc, GncRecurrence *gr)
     grc->num_rec++;
 
     gtk_widget_set_sensitive(GTK_WIDGET(grc->buttRemove), (grc->num_rec > 1));
-    g_signal_emit_by_name(G_OBJECT(grc), "changed", NULL);
+    g_signal_emit_by_name(G_OBJECT(grc), "changed");
 
 
 }
@@ -408,7 +408,7 @@ static void removeRecurrence(GncRecurrenceComp *grc)
     last = g_list_last(children);
     gtk_widget_destroy(GTK_WIDGET(last->data));
     g_list_free(children);
-    g_signal_emit_by_name(G_OBJECT(grc), "changed", NULL);
+    g_signal_emit_by_name(G_OBJECT(grc), "changed");
 
 
     gtk_widget_set_sensitive(GTK_WIDGET(grc->buttRemove), (grc->num_rec > 1));