diff --git a/src/common/ignore.c b/src/common/ignore.c
index 6163d236..5b0c2b69 100644
--- a/src/common/ignore.c
+++ b/src/common/ignore.c
@@ -271,7 +271,7 @@ ignore_read_next_entry (char *my_cfg, struct ignore *ignore)
 }
 
 void
-ignore_load ()
+ignore_load (void)
 {
 	struct ignore *ignore;
 	struct stat st;
@@ -302,7 +302,7 @@ ignore_load ()
 }
 
 void
-ignore_save ()
+ignore_save (void)
 {
 	char buf[1024];
 	int fh;
diff --git a/src/common/notify.c b/src/common/notify.c
index 5569c100..78a572f6 100644
--- a/src/common/notify.c
+++ b/src/common/notify.c
@@ -662,7 +662,7 @@ notify_isnotify (struct session *sess, char *name)
 }
 
 void
-notify_cleanup ()
+notify_cleanup (void)
 {
 	GSList *list = notify_list;
 	GSList *nslist, *srvlist;
diff --git a/src/common/text.c b/src/common/text.c
index e22ceedf..c2b389c4 100644
--- a/src/common/text.c
+++ b/src/common/text.c
@@ -1808,7 +1808,7 @@ pevent_check_all_loaded (void)
 }
 
 void
-load_text_events ()
+load_text_events (void)
 {
 	memset (&pntevts_text, 0, sizeof (char *) * (NUM_XP));
 	memset (&pntevts, 0, sizeof (char *) * (NUM_XP));
@@ -2488,7 +2488,7 @@ sound_load_event (char *evt, char *file)
 }
 
 void
-sound_load ()
+sound_load (void)
 {
 	int fd;
 	char buf[512];
@@ -2521,7 +2521,7 @@ sound_load ()
 }
 
 void
-sound_save ()
+sound_save (void)
 {
 	int fd, i;
 	char buf[512];
diff --git a/src/fe-gtk/fkeys.c b/src/fe-gtk/fkeys.c
index 9d51e3a1..2da31691 100644
--- a/src/fe-gtk/fkeys.c
+++ b/src/fe-gtk/fkeys.c
@@ -426,7 +426,7 @@ key_binding_is_builtin (struct key_binding *kb)
 }
 
 void
-key_init ()
+key_init (void)
 {
 	if (key_load_kbs () == 1)
 	{
@@ -1219,7 +1219,7 @@ key_dialog_load (GtkListStore *store)
 }
 
 void
-key_dialog_show ()
+key_dialog_show (void)
 {
 	GtkWidget *vbox, *box, *pane, *scroll;
 	GtkWidget *view, *xtext, *delete_button;
diff --git a/src/fe-gtk/ignoregui.c b/src/fe-gtk/ignoregui.c
index fbe7d2e2..b115eda6 100644
--- a/src/fe-gtk/ignoregui.c
+++ b/src/fe-gtk/ignoregui.c
@@ -336,7 +336,7 @@ ignore_stats_entry (GtkWidget * box, char *label, int value)
 }
 
 void
-ignore_gui_open ()
+ignore_gui_open (void)
 {
 	GtkWidget *vbox, *box, *stat_box, *frame;
 	GtkWidget *view;
diff --git a/src/fe-gtk/textgui.c b/src/fe-gtk/textgui.c
index 9b6baf3f..4abd7235 100644
--- a/src/fe-gtk/textgui.c
+++ b/src/fe-gtk/textgui.c
@@ -486,7 +486,7 @@ pevent_hlist_treeview_new (GtkWidget *box)
 }
 
 void
-pevent_dialog_show ()
+pevent_dialog_show (void)
 {
 	GtkWidget *vbox, *hbox, *wid, *pane, *preview_pane;
 	XTextColor xtext_palette[XTEXT_COLS];
diff --git a/src/fe-gtk/urlgrab.c b/src/fe-gtk/urlgrab.c
index 0c03b72b..aedace1d 100644
--- a/src/fe-gtk/urlgrab.c
+++ b/src/fe-gtk/urlgrab.c
@@ -187,7 +187,7 @@ populate_cb (char *urltext, gpointer userdata)
 }
 
 void
-url_opengui ()
+url_opengui (void)
 {
 	GtkWidget *vbox, *hbox, *view;
 	char buf[128];