diff --git a/src/config.h b/src/config.h
index f93b780..a861a5a 100644
--- a/src/config.h
+++ b/src/config.h
@@ -8,8 +8,8 @@
 
 #define MODEL_48SX 485
 #define MODEL_48GX 486
-#define MODEL_40G  406
-#define MODEL_49G  496
+#define MODEL_40G 406
+#define MODEL_49G 496
 
 typedef struct {
     char* progname;
diff --git a/src/main.c b/src/main.c
index e2bed1e..7521e62 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,4 +1,5 @@
 #include <stdbool.h>
+#include <unistd.h>
 
 #include "emulator.h"
 #include "ui.h"
@@ -16,6 +17,8 @@ int main( int argc, char** argv )
     while ( true ) {
         ui_get_event();
         ui_update_display();
+
+        usleep( 1000000 / 64 );
     }
 
     /* Never reached */