diff --git a/tetris/tetris.h b/tetris/tetris.h
index 0d7d2c2..6607328 100644
--- a/tetris/tetris.h
+++ b/tetris/tetris.h
@@ -33,7 +33,8 @@ extern FILE *gamelog;
 // max allowed is 128,128 since I want all locations to 
 //  fit in a single byte
 #define TETRIS_ROWS 32
-#define TETRIS_COLS 8
+#define TETRIS_COLS 16
+//#define TETRIS_COLS 8
 
 
 // how many different piece types and orientations
@@ -173,4 +174,4 @@ uint8_t smallest_in_arr(uint8_t arr[], const uint8_t arr_size);
 void int16_to_uint8_arr(int16_t *in_arr, uint8_t *out_arr, uint8_t arr_size);
 void uint8_to_int16_arr(uint8_t *in_arr, int16_t *out_arr, uint8_t arr_size);
 
-#endif
\ No newline at end of file
+#endif