diff --git a/eepromutils/eepmake.c b/eepromutils/eepmake.c
index 8cd5369..33a4132 100644
--- a/eepromutils/eepmake.c
+++ b/eepromutils/eepmake.c
@@ -155,7 +155,7 @@ void parse_data(char* c) {
 				*data = (char *) realloc(*data, data_cap);
 			}
 			
-			sscanf(c, "%2x", (unsigned int *)*data+data_len++);
+			sscanf(c, "%2hhX", (unsigned char *)*data+data_len++);
 			
 			*(c+2) = s;
 			c+=2;