diff --git a/dhcp_tools/main_wnd.c b/dhcp_tools/main_wnd.c
index 1b2faaf..5fd13d9 100644
--- a/dhcp_tools/main_wnd.c
+++ b/dhcp_tools/main_wnd.c
@@ -868,7 +868,7 @@ int main(int args, char **argv) {
     gtk_spin_button_set_adjustment(GTK_SPIN_BUTTON(numInc), adj);
 
     GtkWidget     *numVni = GTK_WIDGET(gtk_builder_get_object(g_mainBuilder, "sbVni"));
-    GtkAdjustment *adjVni = gtk_adjustment_new(1, 1, 10000000, 1, 0, 0);
+    GtkAdjustment *adjVni = gtk_adjustment_new(1, 0, 10000000, 1, 0, 0);
     gtk_spin_button_set_adjustment(GTK_SPIN_BUTTON(numVni), adjVni);
 
     GtkWidget     *numVniCli = GTK_WIDGET(gtk_builder_get_object(g_mainBuilder, "sbVniClient"));