diff --git a/src/main.c b/src/main.c
index 955acf4..acdd42b 100644
--- a/src/main.c
+++ b/src/main.c
@@ -10,49 +10,49 @@ static Evas_Object *ly;
 
 static const struct
 {
-    const char *keyname;
-    int op;
+   const char *keyname;
+   int op;
 } _keymap[] = {
-    {"KP_0",        NUM_0},
-    {"0",           NUM_0},
-    {"KP_1",        NUM_1},
-    {"1",           NUM_1},
-    {"KP_2",        NUM_2},
-    {"2",           NUM_2},
-    {"KP_3",        NUM_3},
-    {"3",           NUM_3},
-    {"KP_4",        NUM_4},
-    {"4",           NUM_4},
-    {"KP_5",        NUM_5},
-    {"5",           NUM_5},
-    {"KP_6",        NUM_6},
-    {"6",           NUM_6},
-    {"KP_7",        NUM_7},
-    {"7",           NUM_7},
-    {"KP_8",        NUM_8},
-    {"8",           NUM_8},
-    {"KP_9",        NUM_9},
-    {"9",           NUM_9},
-    {"KP_Divide",   OP_DIV},
-    {"KP_Multiply", OP_MUT},
-    {"KP_Subtract", OP_SUB},
-    {"KP_Add",      OP_ADD},
-    {"plus",        OP_ADD},
-    {"minus",       OP_SUB},
-    {"asterisk",    OP_MUT},
-    {"slash",       OP_DIV},
-    {"KP_Enter",    OP_EQU},
-    {"Return",      OP_EQU},
-    {"BackSpace",   OP_CLR},
-    {"period",      OP_DEC},
-    {"comma",       OP_DEC},
-    NULL
+  {"KP_0",        NUM_0},
+  {"0",           NUM_0},
+  {"KP_1",        NUM_1},
+  {"1",           NUM_1},
+  {"KP_2",        NUM_2},
+  {"2",           NUM_2},
+  {"KP_3",        NUM_3},
+  {"3",           NUM_3},
+  {"KP_4",        NUM_4},
+  {"4",           NUM_4},
+  {"KP_5",        NUM_5},
+  {"5",           NUM_5},
+  {"KP_6",        NUM_6},
+  {"6",           NUM_6},
+  {"KP_7",        NUM_7},
+  {"7",           NUM_7},
+  {"KP_8",        NUM_8},
+  {"8",           NUM_8},
+  {"KP_9",        NUM_9},
+  {"9",           NUM_9},
+  {"KP_Divide",   OP_DIV},
+  {"KP_Multiply", OP_MUT},
+  {"KP_Subtract", OP_SUB},
+  {"KP_Add",      OP_ADD},
+  {"plus",        OP_ADD},
+  {"minus",       OP_SUB},
+  {"asterisk",    OP_MUT},
+  {"slash",       OP_DIV},
+  {"KP_Enter",    OP_EQU},
+  {"Return",      OP_EQU},
+  {"BackSpace",   OP_CLR},
+  {"period",      OP_DEC},
+  {"comma",       OP_DEC},
+  NULL
 };
 
 
 static void
 _signal_cb(void *data, Evas_Object * o, const char *emission, const
-               char *source)
+           char *source)
 {
    int             val = 0;
 
@@ -90,10 +90,10 @@ _signal_cb(void *data, Evas_Object * o, const char *emission, const
            case OP_DEC:
               equate_append(".");
               break;
-          case OP_OBRAK:
+           case OP_OBRAK:
               equate_append("(");
               break;
-          case OP_CBRAK:
+           case OP_CBRAK:
               equate_append(")");
               break;
            case OP_SIN:
@@ -238,19 +238,19 @@ _edje_callbacks_define(Evas_Object * o)
 static Eina_Bool
 _key_down_cb(void *data, int type, void *event)
 {
-    Ecore_Event_Key *ev = event;
-    int i;
+   Ecore_Event_Key *ev = event;
+   int i;
 
-    printf("{\"%s\", },\n", ev->key);
+   printf("{\"%s\", },\n", ev->key);
 
-    for (i = 0; _keymap[i].keyname; i++)
-    {
+   for (i = 0; _keymap[i].keyname; i++)
+     {
         if (!strcmp(_keymap[i].keyname, ev->key))
-        {
-            _signal_cb((void*)_keymap[i].op, elm_layout_edje_get(ly), NULL, NULL);
-        }
-    }
-     return EINA_TRUE;
+          {
+             _signal_cb((void*)_keymap[i].op, elm_layout_edje_get(ly), NULL, NULL);
+          }
+     }
+   return EINA_TRUE;
 
 }
 
@@ -272,7 +272,7 @@ _create_gui(void)
    elm_win_resize_object_add(win, ly);
    evas_object_show(ly);
 
-  ecore_event_handler_add (ECORE_EVENT_KEY_DOWN, _key_down_cb, NULL);
+   ecore_event_handler_add (ECORE_EVENT_KEY_DOWN, _key_down_cb, NULL);
 
    evas_object_show(win);
    evas_object_resize(win, 240, 320);