1 files changed, 2 insertions, 2 deletions
diff --git a/glcd.h b/glcd.h
index 4fc375c6..9a23dc8e 100644
--- a/glcd.h
+++ b/glcd.h
@@ -48,8 +48,8 @@ void lcdDrawLine(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t co
 void lcdDrawRect(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint8_t filled, uint16_t color);
 void lcdDrawRectString(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint8_t* str, uint16_t fontColor, uint16_t bkColor);
 void lcdDrawCircle(uint16_t x, uint16_t y, uint16_t radius, uint8_t filled, uint16_t color);
-void lcdDrawString(uint16_t x, uint16_t y, unsigned char *str, uint16_t color, uint16_t bkColor);
-void lcdDrawChar(uint16_t x, uint16_t y, unsigned char c, uint16_t charcolor, uint16_t bkColor);
+void lcdDrawString(uint16_t x, uint16_t y, const char *str, uint16_t color, uint16_t bkColor);
+void lcdDrawChar(uint16_t x, uint16_t y, const char c, uint16_t charcolor, uint16_t bkColor);
 uint16_t lcdGetHeight(void);
 uint16_t lcdGetWidth(void);
 uint16_t lcdGetOrientation(void);