diff --git a/src/gtk-ui/sync-config-widget.c b/src/gtk-ui/sync-config-widget.c
index aa5d5e04..e7ca6896 100644
--- a/src/gtk-ui/sync-config-widget.c
+++ b/src/gtk-ui/sync-config-widget.c
@@ -824,7 +824,7 @@ sync_config_widget_expand_id (SyncConfigWidget *self,
 
             sync_config_widget_set_expanded (self, TRUE);
         } else if (self->config_name &&
-                   g_strcasecmp (self->config_name, id) == 0) {
+                   g_ascii_strcasecmp (self->config_name, id) == 0) {
 
             sync_config_widget_set_expanded (self, TRUE);
         }
diff --git a/src/gtk-ui/sync-ui.c b/src/gtk-ui/sync-ui.c
index f67cc34b..7c249f2a 100644
--- a/src/gtk-ui/sync-ui.c
+++ b/src/gtk-ui/sync-ui.c
@@ -2001,7 +2001,7 @@ add_configuration_to_box (GtkBox *box,
     if (data->current_service) {
         current_name = data->current_service->pretty_name;
         if (data->current_service->name && name && 
-            g_strcasecmp (name, data->current_service->name) == 0) {
+            g_ascii_strcasecmp (name, data->current_service->name) == 0) {
             current = TRUE;
         }
      }
@@ -3476,7 +3476,7 @@ server_presence_changed_cb (SyncevoServer *server,
 {
     if (data->current_service &&
         config_name && status &&
-        g_strcasecmp (data->current_service->name, config_name) == 0) {
+        g_ascii_strcasecmp (data->current_service->name, config_name) == 0) {
 
         set_online_status (data, strcmp (status, "") == 0);
     }
diff --git a/src/gtk3-ui/sync-config-widget.c b/src/gtk3-ui/sync-config-widget.c
index eaa09cf8..801b78ac 100644
--- a/src/gtk3-ui/sync-config-widget.c
+++ b/src/gtk3-ui/sync-config-widget.c
@@ -803,7 +803,7 @@ sync_config_widget_expand_id (SyncConfigWidget *self,
 
             sync_config_widget_set_expanded (self, TRUE);
         } else if (self->config_name &&
-                   g_strcasecmp (self->config_name, id) == 0) {
+                   g_ascii_strcasecmp (self->config_name, id) == 0) {
 
             sync_config_widget_set_expanded (self, TRUE);
         }
diff --git a/src/gtk3-ui/sync-ui.c b/src/gtk3-ui/sync-ui.c
index ab70c129..a1cbf2cf 100644
--- a/src/gtk3-ui/sync-ui.c
+++ b/src/gtk3-ui/sync-ui.c
@@ -1969,7 +1969,7 @@ add_configuration_to_box (GtkBox *box,
     if (data->current_service) {
         current_name = data->current_service->pretty_name;
         if (data->current_service->name && name && 
-            g_strcasecmp (name, data->current_service->name) == 0) {
+            g_ascii_strcasecmp (name, data->current_service->name) == 0) {
             current = TRUE;
         }
      }
@@ -3444,7 +3444,7 @@ server_presence_changed_cb (SyncevoServer *server,
 {
     if (data->current_service &&
         config_name && status &&
-        g_strcasecmp (data->current_service->name, config_name) == 0) {
+        g_ascii_strcasecmp (data->current_service->name, config_name) == 0) {
 
         set_online_status (data, strcmp (status, "") == 0);
     }