diff --git a/Font5x7.c b/Font5x7.c
index 26a0a87..85802cf 100644
--- a/Font5x7.c
+++ b/Font5x7.c
@@ -9,10 +9,13 @@
  * Check 1 byte of char bitmap data for get width
  */
 
+// Font definitions
 #define FONT_GET_DATA(ch)   (&x5x7_bits[ch*7])
-#define FONT_GET_WIDTH(ch)  (8-x5x7_bits[ch*7]&7)
+#define FONT_GET_WIDTH(ch)  (8-(x5x7_bits[ch*7]&7))
 #define FONT_MAX_WIDTH      7
+#define FONT_WIDTH          5
 #define FONT_GET_HEIGHT     7
+#define FONT_STR_HEIGHT     8
 
 #define CHAR5x7_WIDTH_1px  0x07
 #define CHAR5x7_WIDTH_2px  0x06