diff --git a/main.c b/main.c
index ae66626..4d4fc5f 100644
--- a/main.c
+++ b/main.c
@@ -15,7 +15,7 @@ along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 #include <stdio.h>
 #include "hb9cv.h"
-#include "jpole.h"
+#include "jpole.h"
 #include "groundplane.h"
 //#include <stdlib.h>
 
@@ -108,12 +108,13 @@ int main(){
 
     while (main_menu_sel != 0){ // main menu loop runs until "0" for quit
 
-        main_menu(&f, &unit_index);
-        main_menu_sel = menu_select();
+        main_menu(&f, &unit_index); //prints menu
+        main_menu_sel = menu_select(); 
 
 
         switch(main_menu_sel){
 
+	    case 0: return 0;
             case 1: clear_scr();set_freq(&f);
                     break;
             case 2: clear_scr();set_units_system(&unit_factor ,&unit_index );
@@ -124,11 +125,11 @@ int main(){
                     myflush ( stdin );
                     mypause();
                     break;
-            case 4: clear_scr();
-                    gp_calc(&f, &unit_factor,&lambda, &l1, &l2);
+            case 4: clear_scr();
+                    gp_calc(&f, &unit_factor,&lambda, &l1, &l2);
                     gp_print(&f ,&unit_factor, &lambda, &l1, &l2, &unit_index);
                     myflush ( stdin );
-                    mypause();
+                    mypause();
                     break;
             case 5: clear_scr();
                     hb9cv_calc(&f ,&unit_factor, &lambda, &l1, &l2, &l3, &l4, &l5, &bdiam, &raddiam);
@@ -136,7 +137,7 @@ int main(){
                     myflush ( stdin );
                     mypause();
                     break;
-            // default: maybe easteregg in future
+            default:printf("And then?");return 1; //maybe easteregg in future
     	}
     }
     clear_scr();