diff --git a/source/libublsettingsui-gtk3.c b/source/libublsettingsui-gtk3.c
index 661c26d..635450b 100644
--- a/source/libublsettingsui-gtk3.c
+++ b/source/libublsettingsui-gtk3.c
@@ -525,6 +525,21 @@ void yon_on_email_check(GtkEntry *self,GdkEventFocus *event,GtkContainer *status
     }
 }
 
+void yon_on_space_first_changed(GtkEntry *editable){
+    const char *text = gtk_entry_get_text(editable);
+    gchar *new_text = yon_char_new(text);
+    if (new_text[0]==' ') free(yon_char_divide(new_text,0));
+
+    if (strlen(new_text) < strlen(text)) {
+        g_signal_handlers_block_by_func(editable, G_CALLBACK(yon_on_space_first_changed), NULL);
+        gtk_entry_set_text(editable, new_text);
+        g_signal_handlers_unblock_by_func(editable, G_CALLBACK(yon_on_space_first_changed), NULL);
+        g_signal_stop_emission_by_name(editable, "changed");
+    }
+
+    g_free(new_text);
+}
+
 void yon_on_digit_only_changed(GtkEditable *editable, const gchar *text, gint length, gint *position){
     gchar *new_text = g_new(gchar, length + 1);
     gint i, j = 0;
@@ -534,7 +549,8 @@ void yon_on_digit_only_changed(GtkEditable *editable, const gchar *text, gint le
             new_text[j] = text[i];
             j++;
         }
-    }if (j < length) {
+    }
+    if (j < length) {
         g_signal_handlers_block_by_func(editable, G_CALLBACK(yon_on_digit_only_changed), NULL);
         gtk_editable_insert_text(editable, new_text, j, position);
         g_signal_handlers_unblock_by_func(editable, G_CALLBACK(yon_on_digit_only_changed), NULL);
@@ -594,6 +610,7 @@ char *yon_gtk_entry_check_restricted(GtkEntry *target){
 
 void yon_entry_set_entry_type(GtkEntry *target,GtkBox *status){
     GtkInputPurpose purpose = gtk_entry_get_input_purpose(target);
+            g_signal_connect(G_OBJECT(target),"changed",G_CALLBACK(yon_on_space_first_changed),NULL);
     switch(purpose){
 
         case GTK_INPUT_PURPOSE_DIGITS:
diff --git a/source/libublsettingsui-gtk3.h b/source/libublsettingsui-gtk3.h
index a1b8fee..5f9f340 100644
--- a/source/libublsettingsui-gtk3.h
+++ b/source/libublsettingsui-gtk3.h
@@ -254,6 +254,8 @@ char *yon_get_default_label_with_parameter(char *section, char *parameter);
 
 template_saving_window *yon_save_proceed(char *path,YON_CONFIG_TYPE type, ...);
 
+void yon_on_space_first_changed(GtkEntry *editable);
+
 
 enum CONFIGURATION_PARAMETER_TYPE{
     CONFIGURATION_PARAMETER_BOOL,