diff --git a/c/src/p2fa.c b/c/src/p2fa.c
index 3db6ff3..073d9da 100644
--- a/c/src/p2fa.c
+++ b/c/src/p2fa.c
@@ -114,7 +114,7 @@ void config(UWORD *blackImage, char* configName) {
 
     DebugLine(14, 10, "MADE IT TO HERE --------------------------------------");
     char* str = "key: JBSWY3DPEHPK3PXP NO n digits: 4";
-    DebugLine(13, 0, "String width: %d\n", computeWidth(str, &Font12);
+    DebugLine(13, 0, "String width: %d\n", computeWidth(str, &Font12));
     Paint_DrawString(5, 5, str, &Font12, WHITE, BLACK);
     //Paint_DrawString(5, 5, getConfigReturn.r0, &Font12, WHITE, BLACK);
     EPD_2in13_V4_Display(blackImage);